OrCAD Layout. GerbTool. User s Guide

Transcription

1 OrCAD Layout GerbTool User s Guide

2 Copyright 1998 OrCAD, Ic. All rights reserved. OrCAD, OrCAD Capture, OrCAD Layout, ad OrCAD PSpice are registered trademarks of OrCAD, Ic. Eterprise CIS, Eterprise Compoet Iformatio System, OrCAD Capture CIS, OrCAD Express, OrCAD Express CIS, OrCAD Layout Egieer s Editio, OrCAD Optimizer, ad SmartRoute are trademarks of OrCAD, Ic. Microsoft, Visual Basic, Widows, Widows NT, ad other ames of Microsoft products refereced herei are trademarks or registered trademarks of Microsoft Corporatio. GerbTool ad Soma are trademarks of WISE Software Solutios, Ic. All other brad ad product ames metioed herei are used for idetificatio purposes oly, ad are trademarks or registered trademarks of their respective holders. MN Third Editio 1 July 98 Techical support (503) Corporate offices (503) OrCAD Japa K.K OrCAD UK Ltd Fax (503) Geeral ifo@orcad.com Techical support techsupport@orcad.com Web site OrCAD Desig Network (ODN) S.W. Nimbus Ave. Beaverto, OR USA

3 Cotets Chapter 1 Itroductio... 1 Usig this maual...1 GerbTool features...2 Chapter 2 Cofiguratio... 3 Color list file...3 Chapter 3 Quick start... 5 Startig GerbTool...5 Creatig a ew aperture list...5 Covertig a CAD aperture list...6 Creatig a ew desig...8 Opeig a existig desig...9 Savig a modified layer...10 Exitig GerbTool...10 Chapter 4 GerbTool basics GerbTool widow...11 Toolbars...12 Settigs bar...12 Active layer/d-code...14 Coordiate display...14 Color chooser bar...14 Birdseye view...14 Split scree pae dividers...14 Drawig area...14 Crosshair cursor...14 Film box...15 Status bar...15 Tool tips...15 Desig files...15 Aperture list files...15 OrCAD Layout GerbTool User s Guide iii

4 Cotets Usig GerbTool commads...16 Mouse-butto ad fuctio-key commads...16 Shortcut keys...17 Iterruptig a drawig process...18 Edig a commad...18 Chapter 5 Performace tips Speedig up GerbTool operatios...19 Usig shortcut keys...19 Iterruptig, redrawig, ad highlightig...19 Udoig edits...19 Programmig mouse buttos ad fuctio keys...19 Chapter 6 Uses for GerbTool Layer aligmet...21 Creatig NC drill files...21 Importig drill files...22 Paelizig...22 Viewig or pritig Gerber 274-D composite layers...23 Mergig desigs...23 Draw pads...24 Automatic silkscree clea-up...25 Creatig a soldermask layer...25 Trascodig...25 Soma pad ad trace filletig...26 Chapter 7 Commad referece File meu...27 New...27 Ope...28 Close...28 Save...28 Save As...28 Save All...29 Format...29 Merge...31 Import...31 Export...36 Page Setup...40 iv OrCAD Layout GerbTool User s Guide

5 Cotets Prit...41 Prit Preview...41 Priter Setup...41 Exit...41 Edit meu...42 Udo...43 Select...43 Item...44 Copy...45 Move...45 Delete...45 Clip...46 Joi...46 Rotate...46 Mirror...47 Scale...47 D-Code...47 Alig Layers...48 Origi...48 Purge...48 View meu...49 Widow...49 Zoom I...49 Zoom Out...49 Pa...49 All...49 Film Box...49 Redraw...50 Sketch...50 Overlay...50 Grid...50 Composites...50 Virtual Pael...50 Clear Highlights...50 Highlights...50 Selectios...51 Errors...51 Save...51 Recall...52 OrCAD Layout GerbTool User s Guide v

6 Cotets Previous...52 Toolbars...52 Split...52 Add meu...52 Flash...52 Draw...53 Rectagle...53 Vertex...53 Circle...53 Arc Ctr...53 Arc 3 Pt...53 Polygo...54 Text...55 Layers meu...56 Edit...56 Colors...59 Create...60 Redlie...60 Apertures meu...62 Edit...62 Report...64 Load...65 Uload...65 Merge...65 Compact...66 Covert...66 Save...66 Query meu...66 Item Iformatio...66 Net...67 UserData...68 Measure...68 Highlight...69 Copper...69 Extets...69 vi OrCAD Layout GerbTool User s Guide

7 Cotets Optios meu...70 Grid Sap...70 Ortho Lie Sap...70 Arcs Metric...70 Cofigure...71 Macro meu...78 Ru...78 Load...79 Developer...79 Record...79 Tools meu...80 Paelize...80 DRC...84 Soma...87 Teardrops...87 Netlist...89 Fix SilkScree...92 Pad Removal...93 Drill...93 Covert...95 Layer Spread...97 Vet/Thievig...98 Chapter 8 Aperture Coversio Rule files Defiitio of a ACR file...99 Creatig a ACR file...99 Chapter 9 Exteded Gerber Embedded apertures Aperture macros Layer compositig Viewig composites Covertig from RS-274-D to exteded Gerber format Chapter 10 Usig custom apertures Create a custom aperture OrCAD Layout GerbTool User s Guide vii

8 Cotets Chapter 11 Workig with text fots Editig a fot Creatig a ew fot Appedix A Commad ID values Appedix B Aperture list file format Appedix C Soma cocepts Glossary Idex viii OrCAD Layout GerbTool User s Guide

9 Chapter 1 Itroductio Usig this maual Welcome to GerbTool, the easiest, most powerful, ad versatile CAM statio available. GerbTool provides a powerful set of Widows-based CAM tools, icludig a feature-rich ad robust Gerber/NC editor for esurig a seamless lik betwee PCB desig ad maufacturig. GerbTool is desiged to provide CAD/CAM professioals with the tools they eed for complete cotrol over their CAM databases. From visual verificatio to high-level CAM tools, GerbTool simplifies ad automates your PCB layout post processig ad pre-maufacturig tasks. GerbTool s cosistet ad ituitive graphical user iterface, ad programmable mouse buttos ad fuctio keys, allow you to focus o accomplishig tasks, rather tha o the techical details of operatig the software. This maual was desiged to assist you i usig GerbTool s features. Chapter 3: Quick start is especially geared toward providig the iformatio you eed to become immediately productive. A prior kowledge of CAD/CAM cocepts ad your computer s operatig system is assumed. OrCAD Layout GerbTool User s Guide 1

10 Chapter 1 Itroductio GerbTool features Fast ad easy to use. Ulimited file sizes. Accurate to 1/100 mil ( i.). Fully automatic paelizatio ad vetig. Complete udo to begiig of sessio. Full desig rule checkig (DRC), icludig aular rig checkig ad stub detectio. Soma pad/trace filletig. Teardrop pads. NC drill optimizig, icludig step ad repeat. Isolated pad removal. Automatic removal of silkscree data from pads. Full support for true multilayer etlists, icludig et highlightig. Scalable check plots to HPGL, PostScript, Laser priters, ad all priters/plotters supported by Widows. Coversio of draw pads to flashes. Macro laguage allows the additio of ew commads. Metric ad Imperial formats supported. Photoplotter support icludes exteded Gerber, FIRE9xxx, EIE, BARCO DPF ad IPC-D-350. Accurate display of power ad groud plae composites. Allows aperture scalig to create soldermasks, shrik/expad traces, ad so o. Ability to scale layers to shrik or expad the database. Merge a complete desig or a sigle Gerber file ito aother. Import NC Drill, HPGL, or BARCO files. View up to 999 layers simultaeously. Hadles over 4000 apertures i up to 999 aperture lists. Aperture list coversio tools allow the additio of custom aperture list coverters. Easily created custom apertures ad custom fots. 2 OrCAD Layout GerbTool User s Guide

11 Chapter 2 Cofiguratio Ulike previous releases of GerbTool, this versio does ot require that you create a cofiguratio file. Istead, use the Cofigure commad from the Optios meu. Color list file Whe startig up, GerbTool looks for a color list file amed COLOR.RGB. Oce the color list file is foud, GerbTool reads the available colors from a red-gree-blue (RGB) color ad ame pair list, the reads a list of the curretly chose colors. The curretly chose colors are those preseted wheever you select colors from withi GerbTool (for example, flash ad draw colors). # maximum 1024 colors available... [RGB Color/Name pairs] vga16red vga16cya vga16gree WhiteSmoke FloralWhite OldLace lie AtiqueWhite # maximum 32 curret choice colors... [Choice Colors] blue vga16gree white black coral... SteelBlue SaddleBrow DarkSalmo DarkOrage DeepPik Sample color list. OrCAD Layout GerbTool User s Guide 3

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13 Chapter 3 Quick start Startig GerbTool Creatig a ew aperture list I order to help you get started quickly, this chapter provides a quick overview of GerbTool ad its processes. A more comprehesive descriptio for each GerbTool fuctio is provided i chapters 4 through 8. To start GerbTool, choose GerbTool from the Tools meu i the OrCAD Layout sessio frame. GerbTool s most basic fuctio is to read a Gerber file ito memory ad display it graphically o your scree. A aperture list file describes the shape ad size of all the apertures used i the Gerber file. GerbTool automatically reads aperture list files from Layout. O Note Aperture list files are ot required for exteded Gerber, FIRE9000 or EIE format Gerber files, as they are embedded i the Gerber file. You ca also create your ow aperture list files. There are two ways to do this. The easiest method is to covert your CAD aperture list ito GerbTool format. Therefore, if you have a aperture list that is i a format listed i the table o the ext page, you simply specify this as your aperture list ad GerbTool automatically coverts it for you. O Note You do ot eed to covert aperture list files created by Layout (or by OrCAD PCB 386+). OrCAD Layout GerbTool User s Guide 5

14 Chapter 3 Quick start Covertig a CAD aperture list If, o the other had, you do ot have a CAD aperture list, you ca eter a ew, oexistig fileame whe you specify a aperture list ad let GerbTool create it for you. Although it will iitially be empty, GerbTool creates ew apertures as eeded whe readig i your Gerber file. You ca the edit the aperture list, chagig the shapes ad sizes to meet the eeds of your Gerber file. GerbTool provides aperture list coversio for most of the CAD ad photoplotter aperture list formats i use today. The coversio process traslates a CAD aperture list directly ito GerbTool format, thereby reducig data-etry-related problems. Agai, remember that you do ot eed to covert aperture files created by Layout. The followig table shows the aperture list formats supported by GerbTool, alog with the ame of the Aperture Coversio Rule (ACR) file used for the coversio. Aperture list format ALLEGRO CADSTAR CADSTAR 2 CONSULTEK CSI CSI Report CSI V4 DC-CAD DC-CAD 2 EAGLE EDT EDT 2 EE Desiger GraphiCode Report GerbTool Report HIWIRE GerbTool ACR file ALLEGRO.ACR CADSTAR.ACR CADSTAR2.ACR CONSULTK.ACR CSI.ACR CSIRPT.ACR CSI4.ACR DC-CAD.ACR DC-CAD2.ACR EAGLE.ACR EDT.ACR EDT2.ACR EED.ACR GCREP.ACR GTREP.ACR HIWIRE.ACR Supported aperture list formats (page 1 of 2). Aperture list format GerbTool ACR file 6 OrCAD Layout GerbTool User s Guide

15 Chapter 3 Quick start IVEX Laveir Report Laveir View MASSTECK McCAD MENTOR OrCAD Layout (up to v6.42) OrCAD PCB II PADS P-CAD P-CAD V6 P-CAD V7/V8 P-CAD Report PRANCE PRANCE 2 PROTEL 1.0 PROTEL SCICARDS SCICARDS 2 TANGO ULTIBOARD UNICAD VALID IVEX.ACR LAVINER.ACR VIEW.ACR MASSTEK.ACR MCCAD.ACR MENTOR.ACR MASSTEK.ACR ORCAD.ACR PADS.ACR PCAD.ACR PCAD6.ACR PCAD7_8.ACR PCADRPT.ACR PRANCE.ACR PRANCE2.ACR PROTEL.ACR PFW.ACR SCICARDS.ACR SCICARD2.ACR TANGO.ACR ULTIBRD.ACR UNICAD.ACR VALID.ACR Supported aperture list formats (page 2 of 2). Whe creatig a desig, specify your aperture list ormally. GerbTool coverts it to the proper format automatically. Or you may select the Covert commad from the Apertures meu ad covert it prior to loadig it ito GerbTool. OrCAD Layout GerbTool User s Guide 7

16 Chapter 3 Quick start To covert a supported aperture list to GerbTool format, select the Covert commad from the Apertures meu, specify a iput fileame, the select the appropriate coverter i the Covert Aperture Lists dialog box. Covert Aperture Lists dialog box. & See also For more iformatio about covertig aperture lists, see Chapter 7: Commad referece. Creatig a ew desig To create a ew desig, choose either Auto or Maual mode after you choose New from the File meu. To create a desig file automatically 1 From the File meu, choose New. GerbTool displays the Create New Desig Wizard dialog box. 2 Eter a ame for the ew desig i the Desig Name text box, ad specify a directory i which to create the desig i the Desig Folder text box, the choose the Next butto. GerbTool displays the ext dialog box i the Create New Desig Wizard. 3 Choose Automatic, the choose the Next butto. GerbTool displays the ext dialog box i the Create New Desig Wizard. 4 Specify the path to the directory that cotais the Aperture list files for the ew desig i the text box, the choose the Next butto. GerbTool displays a dialog box iformig you that the desig has bee created. 5 Choose the Fiish butto. GerbTool displays the Edit dialog box ad icludes a list of all the layers foud i the directory. 6 If you are usig Gerber 274-D format, eter a aperture list for each layer by selectig that layer from the list, the eterig the aperture list file (*.APP) i the Aperture List field. 7 Choose the Edit butto. GerbTool displays the Gerber format dialog box. 8 Select the appropriate format, m. settig, ad zero suppressio, the choose the OK butto. GerbTool returs you to the Edit dialog box. 9 Choose the OK butto. GerbTool creates the ew desig accordig to your specificatios. 8 OrCAD Layout GerbTool User s Guide

17 Chapter 3 Quick start Opeig a existig desig To create a desig file maually To create a desig file maually i GerbTool, the layers ad aperture lists must be i stadard Gerber 274-D format. 1 From the File meu, choose New. GerbTool displays the Create New Desig Wizard dialog box. 2 Eter a ame for the ew desig i the Desig Name text box, ad specify a directory i which to create the desig i the Desig Folder text box, the choose the Fiish butto. GerbTool displays the Edit dialog box ad icludes a list of all the layers foud i the directory. 3 Eter a set of layers, ad a aperture list for each layer i the appropriate fields. 4 Choose the Edit butto. GerbTool displays the Gerber format dialog box. 5 Select the appropriate format, m. settig, ad zero suppressio, the choose the OK butto. 6 Choose the OK butto. GerbTool creates the ew desig accordig to your specificatios. Whether creatig desig files automatically or maually, GerbTool creates a desig file amed UNTITLED.GTD i the curret directory. You ca use the Save commad o the File meu to save your desig file uder a differet ame. Follow these steps to ope a existig desig. To ope a existig desig 1 From the File meu, choose the Ope commad. GerbTool displays the Ope Desig dialog box. 2 Locate ad select the desig you wat to ope, the choose the OK butto. GerbTool displays the Edit dialog box. 3 If ecessary, make ay modificatios, the choose the OK butto. GerbTool loads the appropriate files. O Note Layout automatically geerates a desig file whe post-processig (*.GTD). OrCAD Layout GerbTool User s Guide 9

18 Chapter 3 Quick start Savig a modified layer Exitig GerbTool If a layer has bee modified or chaged, you are give a opportuity to save it whe you select the Save, Save As, or Save All commad from the File meu. O Note Whe GerbTool displays a list of files to save, you must select each file you wat to save. Oly those files selected are saved. To exit GerbTool, choose the Exit commad from the File meu. If ay layers have bee modified, GerbTool requests cofirmatio that you really wat to exit. 10 OrCAD Layout GerbTool User s Guide

19 Chapter 4 GerbTool basics GerbTool widow This chapter provides iformatio o GerbTool basics. Tool bars Meu bar Active Layer/Dcode bar Pae Divider Coordiate display Birdseye View Layer Color/Visibility Tool bars Film Box Drawig Area Pae Divider Prompt area Status Bar Tool bars Cross-hair cursor The GerbTool widow cosists of the followig compoets: Mai meu bar where you ca pull dow the commad meus. Toolbars where you ca choose commads with a sigle click. Settigs cotrol bar, where you cotrol various program settigs, such as metric display mode ad grid sap. Color toolbars where you ca chage layer colors ad visibility. Birdseye view that shows the curret view widow relative to the extets of the loaded database. OrCAD Layout GerbTool User s Guide 11

20 Chapter 4 GerbTool basics Adjustable pae dividers to split the drawig area ito multiple views. Drawig area where GerbTool displays all database items. Crosshair cursor idicatig the positio of the mouse withi the drawig area. Film box graphic that idicates the size of the curret film box. Status bar with prompt area where GerbTool displays commad messages. Tool tips o most widow features icludig toolbar buttos, cotrol bar buttos ad meu items. Toolbars Settigs bar Each ico withi a toolbar represets a shortcut to a commad. Whe you click o a ico i the toolbar, GerbTool executes the commad associated with that ico. Use the settigs bar to quickly ad easily cotrol various optios with a sigle mouse click. This sectio describes each butto o the settigs bar. Sketch This butto toggles sketch mode o or off. Whe sketch mode is o, pads appear with a outlie oly, ad traces appear as a sigle thi lie. Besides speedig up redraw times, this mode ca also help you spot stacked pads. Overlay This butto toggles overlay mode o or off. Whe overlay mode is o, items become trasparet whe draw o top of each other. Whe overlay mode is off, items obscure whatever is draw previously. Overlay mode makes it easier to spot stacked pads. View Composites This butto toggles the way GerbTool displays composite layers (exteded Gerber ad FIRExxxx oly). Whe View Composites is o, the polarity of each layer, specified by the Polarity field withi the Edit dialog box (from the Edit commad o the Layers meu), is hoored. If a layer is specified Clear, all data o that layer appears with the curret backgroud color. 12 OrCAD Layout GerbTool User s Guide

21 Chapter 4 GerbTool basics DRC Errors This butto toggles the display of rule violatio errors o or off. If DRC errors exist ad this settig is o, GerbTool displays the DRC View Errors dialog box. & See For iformatio o error reportig, see the DRC sectio i Chapter 7: Commad referece. Grid This butto toggles the system grid display o or off. & See For iformatio o grids, see the Grid sectio i Chapter 7: Commad referece. Grid Sap This butto toggles grid sap mode o or off. Whe grid sap mode is o, the crosshair cursor automatically jumps to the earest grid poit. & See For iformatio o grid sappig, see the Grid Sappig sectio i Chapter 7: Commad referece. Orthogoal Sap Use this butto to toggle orthogoal sap mode o or off. Whe o, lies draw iteractively are forced to the specified agle. O Note CTRL key. The curret settig ca be temporarily overridde by holdig dow the Arcs 360 This butto toggles the method of creatig arcs used by the Arc ad Circle commads (o the Add meu). If o, all arcs are created usig 360 circular iterpolatio. If off, all arcs are created usig arcs of 90 or fewer degrees. This does ot affect the way Gerber data is read from a disk file. It oly pertais to addig ew arcs with the Arc commad (o the Add meu) ad the Circle commad (o the Edit meu). Metric This butto toggles metric mode o or off. Whe metric mode is eabled, GerbTool shows all iformatio ad editig fields that represet sizes ad distaces (for example, coordiates) i metric format. OrCAD Layout GerbTool User s Guide 13

22 Chapter 4 GerbTool basics Active layer/d-code Coordiate display Color chooser bar You ca dock the active layer/d-code cotrol bar or allow it to float i a dialog box. Use this cotrol bar to cotrol the curretly active layer ad D-Code. To chage the active layer or D-Code, simply use the drop-dow list to select a differet layer or D-Code. You ca dock the coordiate display cotrol bar or allow it to float i a dialog box. It shows at a glace the curret locatio of the crosshair cursor. The format of the display is cotrolled by the curret settig of the Me butto withi the Settigs bar or the Metric commad o the Optios meu ad the file format of the active layer. You ca dock the color chooser bar or allow it to float i a dialog box. It is available at all times to chage layer colors ad visibility. Whe a layer is o, idicated by a red box aroud the layer umber, it is both visible ad editable. Whe a layer is off it is either visible or editable. Whe a layer is ref, idicated by a black box aroud the layer umber, it is visible but ot editable. Birdseye view You ca dock the birdseye view or allow it to float i a dialog box. The black rectagle represets the database extets while the red rectagle represets the curret viewig widow. Use it to determie at a glace exactly where your curret view widow is located. Split scree pae dividers By adjustig the pae dividers, you ca split the drawig area ito up to four separate viewig widows. Each widow represets a differet view of your desig. You ca view ad edit your data at multiple zoom levels or locatios simultaeously. Drawig area The drawig area is the area betwee the meu bar ad the status bar. All database items are displayed here. Crosshair cursor While the mouse positio is withi the drawig area, GerbTool displays the cursor as a crosshair. The exact locatio of the crosshair cursor appears i the Coordiate Display toolbar described above. 14 OrCAD Layout GerbTool User s Guide

23 Chapter 4 GerbTool basics Film box The film box represets the size of the film o which you will plot, ad is a graphic display oly. It does ot become part of your Gerber database(s). 6 Tip You ca cotrol the size ad color of the film box usig the Optios meu s Cofigure commad, described i Chapter 7: Commad referece. Status bar Tool tips Desig files GerbTool displays commad status ad prompts i this area. Whe you hold the mouse cursor over a toolbar butto for a few secods, a small popup widow appears with a short descriptio of the feature. GerbTool uses desig files. A desig file, as created by GerbTool (or Layout), cotais iformatio about the Gerber files, ad their associated aperture list files, that costitute a sigle PCB. This usually icludes fileames for ier ad outer sigal layers, silkscree layers, soldermask layers, ad so o. GerbTool also associates a operatig eviromet with each desig file. Thus, whe you load a existig desig file, GerbTool restores the eviromet to the state it was i whe you last saved the desig file. This elimiates the eed to cotiually recofigure GerbTool each time you load a desig. Aperture list files O Note The default file extesio for desig files is cofigurable ad is easily chaged usig the Cofigure commad o the Optios meu. Layout uses a.gtd extesio for these files. Aperture list files defie the characteristics of each Gerber D-Code used i a desig. For each D-Code the aperture list file defies a shape, size, type, ad NC drill tool umber (see Chapter 7: Commad referece). GerbTool stores aperture lists i ASCII format. This makes it easy to create ad modify aperture lists. It also allows easy coversio from most CAD system aperture lists. & See For details of the aperture list format, alog with a example aperture list, see Appedix B: Aperture list file format. O Note The default file extesio for aperture list files is cofigurable. You ca chage it usig the Cofigure commad o the Optios meu. Layout uses a.app extesio for aperture list files it creates. OrCAD Layout GerbTool User s Guide 15

24 Chapter 4 GerbTool basics Usig GerbTool commads This sectio describes the differet ways to use GerbTool commads. Mouse-butto ad fuctio-key commads GerbTool comes pre-cofigured with the followig mouse butto ad fuctio key assigmets. Key Left mouse butto Middle mouse butto Right mouse butto F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 Assigmet View Widow Zoom I Noe Redraw View Film Box View Previous View All Layers Edit Aperture Edit Aperture Report Query Highlight Query Item Measure Ed to Ed Add Remove The assiged mouse ad fuctio key commads are available ay time GerbTool is idle (for example, there is o commad prompt i the prompt area). 16 OrCAD Layout GerbTool User s Guide

25 Chapter 4 GerbTool basics Shortcut keys Shortcut keys are available aytime GerbTool is idle, or whe GerbTool prompts you to eter a poit. Below is a list of the shortcut keys. GerbTool executes shortcut keys immediately without affectig the curret commad. Key Actio ENTER HOME PGUP PGDN LEFT ARROW RIGHT ARROW UP ARROW DOWN ARROW Eter coordiate at cursor locatio Sap cursor to ceter of item Zoom i Zoom out Scroll page left Scroll page right Scroll page up Scroll page dow + or I Zoom i - or O Zoom out 0-9 Brig a layer to the top (1-10) CTRL+0-9 Brig a layer to the top (11-20) A CTRL+A B C CTRL+C D CTRL+D CTRL+F CTRL+G H Shortcut keys (page 1 of 2). Tur o all layers Tur off all but active layer Pop-up floatig color box Eter absolute coordiates Eter relative coordiates Icremet curret D-Code Decremet curret D-Code Edit cofiguratio flags Edit system grid Toggle highlights o or off OrCAD Layout GerbTool User s Guide 17

26 Chapter 4 GerbTool basics Key L CTRL+L M CTRL+M P CTRL+P CTRL+ALT+Q R CTRL+R S CTRL+S U CTRL+U V Actio Icremet active layer Decremet active layer Ru macro Toggle metric mode Pa Toggle auto pa mode Quit immediately without cofirmatio Redraw View all Toggle grid sap Scree prit Udo last edit Udo all edits Toggle composite viewig CTRL+V Toggle virtual pael mode 1-9,0 Brig a layer to the top (1-10) CTRL+[1-9,0] Brig a layer to the top (11-20) Shortcut keys (page 2 of 2). Iterruptig a drawig process Edig a commad Aytime GerbTool redraws the display or highlights a widow of data, you ca halt the drawig process by pressig the ESC key or clickig the right mouse butto. This does ot affect the operatio of the commad ad, i may cases, speeds up its operatio. You ca ed a commad, or ed at least oe level of a multistep commad, by pressig the ESC key or right mouse butto. 18 OrCAD Layout GerbTool User s Guide

27 Chapter 5 Performace tips This chapter provides tips for obtaiig optimal performace from GerbTool. Speedig up GerbTool operatios Usig shortcut keys Shortcut keys are a powerful feature of GerbTool. These keys are available ay time GerbTool is waitig for you to eter a coordiate (poit) or wheever it is idle (that is, whe o commad has bee selected). Usig these keys you ca sap to the ceter of a database item, chage which layers are viewed, udo edits, ad so o. & See For a complete list of available shortcut keys, see Chapter 4: GerbTool basics. Iterruptig, redrawig, ad highlightig You ca speed up ay commad that redraws the database or highlights a group of items by cacelig the drawig process. Click the right butto or press the ESC key to halt the redraw. This does t affect the operatio of the commad; it affects oly the redraw. Oce you re comfortable with the operatio of GerbTool commads you will fid that this ability sigificatly speeds thigs up. Udoig edits The Udo commad provides a high level of freedom whe makig database edits. You ca experimet ad try differet edits without fear of data loss. Sice udo is available as the shortcut key U, you ca udo edits immediately without havig to exit the curret commad. Udo works for all edits regardless of size, ad there is o limit to the umber of edits you ca udo. Remember to eable the udo capability with the Cofigure commad (Optios meu) before makig your edits, the use the Edit meu s Udo commad or the shortcut key U to udo as ecessary. Programmig mouse buttos ad fuctio keys OrCAD Layout GerbTool User s Guide 19

28 Chapter 5 Performace tips GerbTool s easy-to-use graphical user iterface is further ehaced with the versatility of programmable mouse buttos ad fuctio keys. Usig the Cofigure commad o the Optios meu, you ca program the mouse butto ad fuctio keys F1 through F12 with commads that you frequetly use. 20 OrCAD Layout GerbTool User s Guide

29 Chapter 6 Uses for GerbTool Layer aligmet This chapter provides several examples of uses for GerbTool. Layer aligmet ivolves liig up all layers so that whe you view multiple layers simultaeously, they are correctly aliged. Proper layer aligmet is also crucial to the successful creatio of a multilayer etlist. First select a master layer with which all other layers should be aliged ad select a item o that layer to use as a referece poit. Choose the Alig commad from the Edit meu ad select the item you chose as a referece poit. The, select a item o each layer to be aliged that correspods to the referece poit. As you select each item, GerbTool aligs the all other layers to the master layer. 6 Tip You ca use the shortcut zoom i, zoom out, ad pa keys (see Chapter 4: GerbTool basics) to locate the referece ad correspodig items. Creatig NC drill files Use the Drill commad o the Tools meu to create a NC Drill file from ay layer. Choose the format for the drill file by choosig the NC Format butto withi the Drill editig dialog box (show i Chapter 7: Commad referece). Usually, the layer you choose to create a drill file from represets the pad master for the etire desig. Whe creatig NC Drill files, GerbTool traslates the Gerber flashes (except targets ad thermals) ito drill hits. The Tool field, i the correspodig aperture list for the selected layer, determies the tool call-out for each drill hit. O Note Use the Report commad from the Apertures meu to determie if you have a tool assiged to each flash. Edit the aperture list, if required, so all flashes are assiged a tool. GerbTool the optimizes the drill hits, accordig to your specificatios, for fastest throughput. OrCAD Layout GerbTool User s Guide 21

30 Chapter 6 Uses for GerbTool Importig drill files Perform paelizatio prior to executig the Tools meu s Drill commad. If your drillig equipmet has a small memory capacity, perform a virtual paelizatio. This allows GerbTool to isert the eeded step ad repeat codes ito the output drill file. Preferably, if your drillig equipmet has eough memory, you should perform a ormal o-virtual paelizatio. This results i a fully optimized pael for the maximum drillig efficiecy. Use the Drill commad from the Import meu to load a NC Drill file ito the active layer. Layout creates a drill file, THRUHOLE.TAP, that you ca import i order to automatically iclude the drill iformatio for your desig. You ca also create a ew empty layer first by selectig the Create commad from the Layers meu. Make sure that the layer you choose is the active layer. Whe loadig a NC drill file, GerbTool coverts the drill hits ito Gerber flashes. Each tool called out i the drill file is located i the aperture list for the active layer. If GerbTool ca t fid a tool, it adds a aperture to the list with a Ukow shape ad the correct tool assigmet. You ca the edit the aperture to correct the shape, size, ad so o. O Note Use the Report commad (from the Apertures meu) to determie if ay apertures were added. Those added are highlighted. Paelizig With GerbTool, paelizig is a simple, oe-step process whe usig the Auto Pael feature. After activatig the layers to be paelized (oly), select the Paelize commad from the Tools meu, esure that the Auto Pael butto is selected (show i Chapter 7: Commad referece), ad eter the miimum image border-to-border spacig i the X ad Y fields. The spacig you specify should be betwee adjoiig edges of the iteded images. GerbTool automatically calculates the maximum umber of images that will fit iside the curret film box. After askig for cofirmatio, GerbTool completes the paelizatio process. Depedig o the settig of the Virtual butto, GerbTool either copies the proper umber of images ito the database or otes the umber of copies ad their locatio for display purposes. O Note You ca use the right mouse butto or press the ESC key to stop the drawig process aytime durig the paelizig process. This usually provides a oticeable improvemet i the overall time to complete the paelizig process without affectig the fiished pael i ay way. 22 OrCAD Layout GerbTool User s Guide

31 Chapter 6 Uses for GerbTool Viewig or pritig Gerber 274-D composite layers You ca use black ad white for layer colors, to provide accurate viewig of composite power ad groud layers. Settig the egative layer to white o a black backgroud ad the positive layers to black results i a realistic depictio of the fial film. O Note The egative layer must superimpose the positive layer. Mergig desigs To prit a composite layer, view your composite layers as described above, the use the Prit commad (from the File meu). The prited image appears o the page exactly as it does i the display. O Note Sice the image for pritig is created i a high resolutio off-scree bitmap, the film box ad display grid may appear o the output page. You ca disable this by settig the film box color to the backgroud color usig the Film box commad (Optios meu) ad disablig the display of the grid usig the Grid commad (Optios meu), or shortcut key G. You ca merge two or more desigs ito a sigle Gerber file so they ca be photoplotted simultaeously. This reduces maufacturig costs by makig full use of photoplot film. I order to merge desigs i this maer, the followig coditios must exist: Each file must be i the same Gerber format ad have the same m. values, ad zero suppressio. & See For iformatio o Gerber formats, see the discussio of the File meu s Format commad i Chapter 7: Commad referece. Each file must use the same aperture list. That is, the size ad shape of each D- Code must be the same i each aperture list. The respective layers i each desig must be the same. For example, layer 1 of each desig must be the silkscree, layer 2 of each desig must be the top layer, ad so o. To merge desig files 1 From the File meu choose the Ope commad ad select the.gtd file for the first desig. GerbTool displays a list of layers i the Layers-Edit dialog box. 2 Choose the OK butto. GerbTool displays the desig at coordiates 0:0 i the lower left of the Film Box. 3 From the Edit meu, choose the Scale commad. The Scale ad/or Offset Layers dialog box appears. Choose the desired offset value. 4 Select All Visible from the Layers drop dow list. OrCAD Layout GerbTool User s Guide 23

32 Chapter 6 Uses for GerbTool 5 Choose the OK butto. GerbTool respods with a error message: Commad caot be udoe. Cotiue? 6 Choose Yes. This shifts the first desig. 7 From the File meu, choose Merge ad the choose Desig. I the Merge Desig dialog box, choose the secod desig. The secod file appears i the film box. O Note OrCAD recommeds that you merge oly Gerber 274-D files. Draw pads Occasioally, CAD systems may output a irregularly shaped or sized pad usig multiple draws to fill i the shape, rather tha a more efficiet sigle flash. This results i larger Gerber files tha ecessary ad icreases processig times. Also, it is virtually impossible for high-level CAM tools such as DRC to recogize the draw pads as true pads, rather tha as collectios of traces. The differece betwee a typical draw pad ad a comparable flash is show below. Draw Pad Flash Draw pad versus a flash. The draw pad i this example requires 27 separate Gerber commads to accomplish what oe Gerber flash ca accomplish. Thus, if you have 2000 of these draw flashes, you ll have a Gerber file with at least 54,000 lies whe flashes could accomplish the same thig i oly 2000 flashes. Usig the Pads commad from the Covert meu, you ca covert all your draw pads to flashes. You do this by idetifyig oe occurrece of a draw pad ad allowig GerbTool to fid all draw pads that match. Ad, to icrease GerbTool s ability to recogize matchig draw pads, you ca specify a tolerace value to compesate for some CAD systems roud-off errors. By specifyig a tolerace, you allow GerbTool to relax its criteria for determiig matchig draw pads. 6 Tip Covertig draw pads to flashes should be the first thig you do to your desigs. This usually esures trouble-free coversio. Also, you must covert all draw pads to flashes before geeratig a etlist or ruig most other CAM tools. 24 OrCAD Layout GerbTool User s Guide

33 Chapter 6 Uses for GerbTool Automatic silkscree clea-up GerbTool has the ability to automatically clea up a silkscree where lies touch or are too close to the pads. Usig the Fix Silkscree commad from the Tools meu, you specify the layer(s) that the silkscree ad pad master are o ad the miimum spacig that must be maitaied betwee the silkscree data ad the pads. If you wat, you ca use widow mode to clea up isolated areas rather tha the etire silkscree layer. GerbTool the cleas up all areas where silkscree lies are too close to a pad. Each offedig lie is moved just eough to elimiate the violatio. & See also For more iformatio o silkscree cleaup, ad to see before ad after illustratios, see Chapter 7: Commad referece. Creatig a soldermask layer Creatig a soldermask is a simple ad easy process usig the Scale commad, from the D-Code selectio o the Edit meu. First, create the soldermask layer by copyig the pad master layer oto a ew layer. Use the Copy commad to copy the pad master to the ew layer. Whe copyig, select Create Layer from the Copy to Layer fields drop-dow list. This creates a ew layer for the ew soldermask data. Now, select the Scale commad, eter a scale factor for X ad Y ad select the Fixed Amout field i the D-Code Scale dialog box, the choose the OK butto. GerbTool adds apertures to the correspodig aperture lists as ecessary ad replaces the D- Codes with the ew scaled D-Codes. The origial D-Codes withi the aperture lists are ot modified. Trascodig Usig the Trascode commad (from the D-Code selectio o the Edit meu), you ca trascode (trasform D-Code) item by item or by selectig a group. Usig selectio criteria, you ca choose exactly which D-Codes are trascoded. For example, to trascode oly draws with a D-Code of D18 o layer 4 ad withi a particular widow, specify the selectio criteria as show i the followig example: OrCAD Layout GerbTool User s Guide 25

34 Chapter 6 Uses for GerbTool Restrictive selectio criteria. Soma pad ad trace filletig After selectig ad highlightig the D-Codes, GerbTool prompts you for the ew D- Code ad the performs the actual trascodig. Soma is a highly cofigurable dialog box that specifies a method of optimizig pad/trace juctio poits. This is ofte referred to as filletig or teardroppig (see Appedix C: Soma cocepts for a techical descriptio of Soma). The purpose of Soma is to icrease your maufacturig yield by addig more copper i the area of the pad/trace juctio, thereby elimiatig ay possible pad/trace separatio. Soma is used primarily whe dealig with small pads ad traces (such as micro vias i the 30 mils or less rage) but ca be used aywhere to prevet pad/trace separatio. Soma provides additioal versatility by allowig you cotrol of the size ad locatio of the geerated Soma pads, alog with a itegral DRC to elimiate ay possible spacig violatios. & See For a complete descriptio of how to use the Soma tool, see Chapter 7: Commad referece. J Trivia Soma derives its uusual ame from the appearace of a Soma pad placed o top of a host pad, which resembles a real sowma. 26 OrCAD Layout GerbTool User s Guide

35 Commad referece This chapter provides details for usig each GerbTool commad. File meu New The File meu selectio displays commads for dealig primarily with files ad directories. The meu commads are described i the followig sectios. The New commad presets the New Desig Wizard as show below. New Desig Wizard. Desig Name Eter a fileame for the ew desig file. Desig Folder Usig the Browse butto you ca browse to the folder that cotais the data files that you wat loaded ito the ew desig. Clickig o the Next butto moves you to the ext step ad presets you with a choice of two modes: Automatic ad Maual. OrCAD Layout GerbTool User s Guide 27

36 Commad referece Automatic Whe you select Auto mode, GerbTool builds a desig file for you automatically. You specify the source folder ad GerbTool determies which files are Gerber or aperture lists. The Gerber fileames are sorted first alphabetically, ad the by layer umber, if oe is foud. If a aperture list is foud that is ot already i GerbTool format, GerbTool tries each cofigured aperture list coverter util a match is foud. Fially, each aperture list is matched to a suitable Gerber fileame. GerbTool the displays the Edit dialog box where you ca make ay fial adjustmets, if ecessary. O Note This commad is affected by the umber of aperture coverters cofigured ad by the fileame extesios that are igored. I geeral, fewer aperture list coverters ad more igored fileame extesios result i faster performace. Maual Whe you select Maual mode, GerbTool creates a empty desig file for you, ad the displays the Edit dialog box for you to eter the Gerber files ad aperture lists. Ope Close Save Save As This commad displays the file chooser ad prompts you for a desig file to load. You ca use a wildcard specificatio to obtai a list of files from which to choose. After you specify a desig file to load, GerbTool displays the Edit dialog box where you ca defie or modify the layer structure ad, if eeded, defie or chage the Gerber iput format specificatio. This commad closes the curret desig. Select this commad to save the curret desig file, ad optioally, ay modified layers or aperture lists. This commad does ot close the curret desig; you ca cotiue to work o it after savig. You must use this commad, Save As, or Save All to save modified layer data. Select this commad to save the curret desig file uder a differet fileame ad optioally ay modified layers or aperture lists. This commad does ot close the curret desig; you may cotiue to work o it after savig. 28 OrCAD Layout GerbTool User s Guide

37 Commad referece Save All Format Select this meu item to save the curret desig ad all modified layers or aperture lists. This commad does ot close the curret desig; you may cotiue to work o it after savig. This meu selectio has two commads: Gerber ad Drill. Whe you select oe of these commads, GerbTool displays a format dialog box i which you set the global formats for the file type i questio. O Note GerbTool supports both global ad local formats. Global formats apply to all layers that do ot have a local format assiged to them. Use this commad to edit the global formats oly. See the Edit commad i the Layers meu for more iformatio o local formats. Typical format dialog box. You ca specify the correct format for that type of file (i this example, Gerber) by chagig the settigs i a format dialog box. The illustratio above shows a Gerber Format editig dialog box, which icludes the followig fields: Dialect Idicates the specific format of the Gerber laguage such as RS-274-D, exteded Gerber, FIRE9xxx, ad EIE. If i doubt, choose RS-274-D. OrCAD Layout GerbTool User s Guide 29

38 Commad referece m. Coordiate format such as 2.3. This specifies 2 decimal digits before a implied decimal poit, ad 3 followig (for example, represets if the coordiate format is 2.3). Because of limitatios i the represetatio of arcs i Gerber format, it is best to use at least a 3.4 coordiate precisio for desigs that iclude arcs. Termiator Idicates the block termiator (EOB). Use \r to idicate a carriage retur (ASCII 13) ad \ to idicate a lie feed (ASCII 10). Mode Choose Absolute or Icremetal (see Glossary for descriptios of these terms). Zero suppressio Idicates whether leadig zeros or trailig zeros are suppressed, or there is o zero suppressio. G commads Idicates whether GerbTool icludes G commads (for example, G01) whe you output Gerber files. Special You ca eable Modal compressio to reduce the size of your files by removig all redudat draft codes ad coordiates. Or, you ca eable Metric mode idicatig that your files are i metric format. You ca also specify whether all circular iterpolated arcs should be cosidered 360 or quadrat, eable the savig of G04 commets, eable the output of UserData iformatio, eable the output of Netlist iformatio embedded withi the Gerber file(s), ad specify that carriage returs ad lie feeds should be hoored as block termiators. You ca toggle betwee metric ad ich format, as well as chage m. formats after loadig a desig. If you chage formats after loadig, all layers are marked as modified. M Cautio If you chage formats after loadig ad do ot save all layers, the ext time you load that desig, the saved format may ot match that of the usaved Gerber files. Selectig the Netlist butto tells GerbTool to save etlist iformatio withi the Gerber file. If you have previously saved a Gerber file with etlist iformatio, you ca remove it by deselectig the Netlist butto ad savig. O Note It is importat that you specify the correct format before loadig a ew desig. The critical format items are m., mode, ad trailig zeros. If you load a desig with a icorrect format, GerbTool will display it with upredictable results. If you iadvertetly load a desig this way, reload the desig ad click o the Format butto of the Edit dialog box to correct the format. 30 OrCAD Layout GerbTool User s Guide

39 Commad referece Merge The Merge commad has two modes: Desig ad Gerber. O Note All merge commads require that you esure the critical format items (mode, m. ad zero suppressio) of the file or files beig merged match those of the curretly loaded desig. Desig Selectig this commad allows aother complete desig to be merged layer by layer ito the curret desig. If a layer from the exteral desig does t exist i the curret desig, you will be prompted to create a ew layer. Gerber Use this commad to merge a Gerber file ito the curretly active layer. GerbTool prompts you for a fileame. You ca use a wildcard specificatio to obtai a list of files from which to choose. The specified fileame is ot added to the list of loaded layers. Rather, the cotets of the file are read i ad appeded to the active layer. Import The Import commad has a umber of optios: BARCO DPF, HPGL, IPC-D-356, Drill ad DXF. BARCO DPF Use this commad to import oe or more BARCO files ito the curretly loaded desig. This commad begis importig the specified files ito the active layer if it is empty. If it is ot empty, GerbTool creates a ew layer followig the active layer. GerbTool creates as may layers as ecessary to import all the files you specify. O Note Oce a BARCO DPF file is imported ito a layer it effectively becomes Gerber data ad will ideed be saved as Gerber if the layer is subsequetly saved. To output the layer i BARCO DPF format use the BARCO DPF commad from the Export meu. OrCAD Layout GerbTool User s Guide 31

40 Commad referece HPGL Use this commad to merge a HPGL plot file ito the curretly active layer. After selectig a file to import, GerbTool displays the followig HPGL import dialog box. HPGL Import dialog box. Usig this dialog box, you ca specify the expected plot size, whether to rotate the plot data ad which D-Codes to use for each HPGL pe. IPC-D-356 Use this commad to import a IPC-D-356 etlist ito your desig. Because a IPC- D-356 etlist cotais iformatio pertaiig to pads ad ot traces, GerbTool must geerate a iteral etlist prior to importig a IPC-D-356 etlist, to esure that your database cotais a full ad complete etlist after importig. While this may soud redudat, the added beefit of a automatic etlist compariso is well worth it. The etlist compariso feature produces a report file detailig ay differeces betwee the iteral ad the imported etlists, i additio to highlightig ay differeces. Optioally, you ca update the database UserData fields with the compoet/et data from the IPC-D-356 file. The, you ca use GerbTool commads, icludig the Item Ifo commad (o the Query meu), to examie ad maipulate the true referece desigators, pi umbers, ad so o. GerbTool creates a pad for each test poit i the iput file. These pads are based o the size ad locatio of the test poits ad are placed o the active layer. It is a good idea to create a empty layer ad make it the active layer before importig a IPC- D-356 file. GerbTool coverts the IPC iformatio ito Userdata attached to the pads ad traces i the Gerber file. For pads, the format is etame:compoet(pi). For traces, oly the etame is attached. 32 OrCAD Layout GerbTool User s Guide

41 Commad referece The list below shows possible error messages that ca come from importig a IPC- D-356 file: No IPC data for locatio , Layer:1 There is a pad o this layer that does ot have ay matchig IPC iformatio. No Gerber data for locatio , ID 45: () idx 43 There was a IPC-D-356 record for this locatio, but o Gerber data. Gerber Net Re-assigmet: GerbTool et 78 Locatios: , ad , IPC ets 55:() 171:() The IPC file has tried to associate the 2 ets, 55:() ad 171:(), to the GerbTool et umber 78. IPC Net Re-assigmet: GerbTool ets Locatios: , ad , IPC et 78:() The IPC file has tried to give the same et iformatio 78:() to the GerbTool ets 123 ad 250. Drill Use this commad to import a NC Drill file oto the active layer. O Note This commad requires that you esure the critical format items (mode, m. ad trailig zero suppressio) for the file, or files, beig loaded match those of the curretly specified drill format. DXF Use this commad to import a DXF file ito your desig. You ca map each layer cotaied withi the DXF file to oe or more GerbTool layers. This flexibility allows you to duplicate iformatio oto multiple layers. For istace, a pad master layer might eed to be merged oto each layer cotaiig traces. Likewise, you ca map more tha oe DXF layer to a sigle GerbTool layer. You ca map layers by color so that items of the same color are merged together oto a sigle GerbTool layer. This feature ca be useful for viewig DXF files cotaiig may colors or items that do t share the same color as the DXF layer i which they appear. OrCAD Layout GerbTool User s Guide 33

42 Commad referece You ca also map blocks to apertures maually, or automatically whe you export from GerbTool, if you tur o the Auto Map feature. GerbTool automatically explodes blocks that you do t map to apertures ito their idividual draw compoets. O Note Mappig blocks to equivalet apertures makes desig editig easier ad decreases the size of the database. GerbTool supports stadard SHX fot files ad SHX Uifot files, both for text ad shape etities. If text withi the DXF file refers to a fot that is ot preset o your system, or the fot file is of a urecogized type, GerbTool uses a stadard fot i its place. GerbTool displays the followig dialog box. Import DXF dialog box. Iput File Specifies the DXF file to import. Report File Specifies the report file to geerate. Fot Directory Specifies the directory for SHX fot ad shape files. Source DXF Layer Specifies the curret DXF layer you selected for mappig to zero or more destiatio layers i GerbTool. Destiatio Layer Specifies the layers that you selected to receive the cotets of the Source DXF Layer. Note that more tha oe destiatio layer ca be selected by keepig the Ctrl key pressed durig selectio. Map All to Curret Merges all DXF layers ito the curret GerbTool layer. Map by Color Select this to map DXF file items oto GerbTool layers based o 34 OrCAD Layout GerbTool User s Guide

43 Commad referece color. Items of color 1 (red) appear o GerbTool layer 1, color 2 (yellow) o GerbTool layer 2, ad so o. O Note Esure that the Max Layers settig i the Geeral Cofiguratio Optios is set high eough to allow for the highest color expected (255 maximum). Items of a color umber higher tha this settig appear o the last (highest-umbered) GerbTool layer. Though may drawigs use colors 1 through 9 oly, the valid rage is 1 through 255. Map Sequetially Displays a dialog box you use to sequetially map DXF layers to GerbTool layers. You ca specify the first GerbTool layer to receive DXF layer iformatio, ad you ca exclude DXF layer 0 from the mappig. Scale Factor Specifies the scale factor GerbTool uses whe mergig. The default scale factor is 1. A desig draw usig metric uits may require that the scale factor be chaged appropriately (e.g., if the uits are millimeters, use a scale factor of.0394). Lie Width Specifies the lie width, i iches, GerbTool should use for zerowidth lies. The default width is 0.01 iches. O Note Zero-width, closed polylies create filled polygos i GerbTool. Place at Origi Specifies that GerbTool places the DXF desig with its lowerleft corer at the GerbTool origi. Clear Merge Layers Specifies that GerbTool empties all merge layers prior to importig DXF iformatio. Create Apertures Specifies that GerbTool creates a aperture for drawig lies whe a equivalet aperture does ot exist. If ot checked, GerbTool uses the ext smaller aperture. If a ext smaller aperture does ot exist, it uses the smallest. Map Blocks Displays a dialog box that you use to map blocks i the DXF file to apertures i GerbTool. If Auto Map is selected the all blocks to be mapped must have their ames costructed i the same maer as GerbTool DXF Export costructs block ames. If Clear Map is selected, the all block mappig associatios are removed. OrCAD Layout GerbTool User s Guide 35

44 Export Commad referece Usig the Export commad you ca export your Gerber data ito BARCO DPF, IPC-D-350, IPC-D-356, DXF, HPGL ad PostScript data formats. BARCO DPF GerbTool exports desigs i the BARCO DPF format to a separate file for each layer. You select which layers to export ad what the output fileames will be. If you eable the Auto Reame butto GerbTool outputs all selected layers, reamig each layer automatically usig the fileame extesio specified i the New Extesio field. IPC-D-350 GerbTool exports desigs i the IPC-D-350 format to oe disk file, cotaiig all layer data specified withi the curretly loaded desig. The specified output file cotais all data ecessary to reproduce your desig o ay IPC-D-350 compatible device. IPC-D-356 GerbTool exports desigs i the IPC-D-356 format to oe disk file cotaiig all layer data specified withi the curretly loaded desig. The specified output file cotais all etlist data associated with the curret desig. DXF Whe exportig to DXF format, GerbTool creates a correspodig DXF layer for each layer i the GerbTool desig. I additio it creates a DXF layer 0, cotaiig items which appear withi the Blocks sectio. The Blocks sectio cotais blocks with iformatio ecessary for displayig each of the apertures used i the desig. You are ot required to acquire a equivalet set of blocks for reproducig the apertures that ca appear withi GerbTool. O Note DXF does ot support the cocept of polarity. Negative polarity areas withi custom apertures will ot appear correctly whe the file is imported ito other applicatios. Block ames are created with a covetio that allows for easy import back ito GerbTool whe the DXF Import Auto Map feature is used. Each pad i the desig is output ito the DXF file as a block isert. By processig the pads as refereces i this maer, istead of duplicatig the draws for each istace, ca sigificatly reduce the size of the geerated file. 36 OrCAD Layout GerbTool User s Guide

45 Commad referece Whe exportig to the DXF format, you see the followig dialog box. Export DXF dialog box. Output File Report File Specifies ame of the DXF file to create whe exportig. Specifies the report file to geerate. HPGL GerbTool provides three modes of output whe plottig o a HPGL compatible plotter: Sketch, Outlie ad Fill. Sketch mode is the fastest but does ot show width o draws ad some flashes such as Douts. Outlie mode shows true width o all objects but they are outlied oly. Fill mode shows true width, ad all objects are completely filled i as they would appear o a photoplot. Fill mode is the slowest ad is extremely hard o plotter pes. Export HPGL dialog box. You ca also specify output file, media size, plot offset, pe width, pe speed, pe umber for flashes ad draws, pe umber for the optioal border, scale, whether to rotate 90 ad whether to plot oly pads (flashes). The offset values are applied idepedet of the scale specified. Plot offsets allow you to plot multiple images o oe sheet. Add Border This optio adds a border to your plots. To cotrol what text GerbTool adds to this border see Optios/Cofigure later i this chapter for a descriptio of the Prit Border Text cofiguratio parameter. OrCAD Layout GerbTool User s Guide 37

46 Commad referece Batch Mode This optio istructs GerbTool to output each visible layer to a separate output file. Durig batch mode operatio, if the Output File field is empty, the output fileames are derived from the fileame associated with each layer ad the curretly cofigured HPGL fileame extesio (see Optios/Cofigure later i this chapter). If, o the other had, the output file field cotais a fileame, GerbTool appeds a umber represetig the umber of the iput layer (i.e., demo.001, demo.002, ad so o). Iteractive Mode Eablig Iteractive mode allows you to iteractively positio each layer o the output page. To positio a image o the page, simply click your mouse over a image to select it ad the drag the image to the desired locatio ad release the mouse butto (or click agai). Durig iteractive plot positioig, a meu of buttos is provided alog with several plot specific ested commads. HPGL iteractive cotrol form. The Plot butto saves the page layout ad plots the data. The OK butto saves the page layout ad quits the iteractive sessio without plottig. The Reset butto resets the images to their iitial positios for this sessio (if the form has bee pied) or simply quits the iteractive sessio without savig the page layout or plottig the data. The ested commads available durig a iteractive plot sessio are C for absolute coordiate etry, I for page layout iitializatio, L to cycle the curretly selected layer forward, CTRL+L to cycle the curretly selected layer backward, S to sap (alig) the curretly selected layer o top of aother layer, ad R to redraw the page layout. O Note There are two files withi the GerbTool program directory that affect each HPGL plot. The files HPGL.INI ad HPGL.DEI are prefixed ad appeded, respectively, to the actual plot output. If you have ay special requiremets, you may edit these files as eeded. 38 OrCAD Layout GerbTool User s Guide

47 Commad referece PostScript GerbTool provides PostScript output allowig you to plot your data o ay device that supports PostScript, icludig typesetters capable of producig productio quality artwork. There are two modes of output whe outputtig PostScript: Outlie ad Fill. Outlie mode shows true width o all objects but they are outlied oly. This allows you to check for overlappig features. Fill mode shows true width, ad all objects are completely filled i as they would appear o a photoplot. Fill mode may produce a larger output file. Export PostScript dialog box. You ca also specify output file, media size, plot offset, scale icludig fit to page, whether to rotate 90 ad whether to plot oly pads (flashes). The offset values are applied idepedet of the scale specified. Plot offsets allow you to positio the image aywhere o the media. Gray Scale Eablig Gray Scale mode allows you to output accurate black ad white composites, as well as halftoe images. Whe Gray Scale mode is disabled, all colors other tha the backgroud color are prited as black. Whe eabled, all colors (other tha black/white) are coverted to a differet gray scale. Add Border This optio adds a border to your plots. To cotrol what text GerbTool adds to this border, see the Cofigure sectio uder the Optios meu later i this chapter for a descriptio of the Prit Border Text cofiguratio parameter. Batch Mode This optio istructs GerbTool to output each visible layer to a separate output file. Durig batch mode operatio, if the Output File field is empty, the output fileames are derived from the fileame associated with each layer ad the curretly cofigured HPGL fileame extesio (see the Cofigure sectio uder the Optios meu later i this chapter). If, o the other had, the output file field cotais a fileame, GerbTool appeds a umber represetig the umber of the iput layer (i.e., demo.001, demo.002, ad so o). OrCAD Layout GerbTool User s Guide 39

48 Commad referece Page Setup Use this commad to cofigure how GerbTool will format each page prited by the Prit commad. Page Setup dialog box. Scale Specifies the scale for the prit output. A scale of 1 idicates a 1:1 correspodece betwee the prit output ad the desig. A scale of 2 idicates a 2:1 correspodece betwee the prit output ad the desig, ad so o. Overlap Idicates the amout of overlap for pages of a multi-page plot, to allow for proper aligmet whe tapig the pages together. Add Border This optio adds a border to your prit output. Batch Mode This optio istructs GerbTool to output each visible layer to a separate output file. Durig batch mode operatio, if the Output File field is empty, GerbTool derives the output fileames from the fileame associated with each layer ad the curretly cofigured Postscript fileame extesio (as explaied i the Cofigure commad discussio, later i this chapter). If, o the other had, the output file field cotais a fileame, GerbTool appeds a umber represetig the umber of the iput layer (demo.001, demo.002, ad so o). Color/Grey Scale If your priter is color-capable, this optio tells GerbTool to produce a color prit. Otherwise, (if your priter is ot color-capable) GerbTool produces accurate black ad white composites, as well as halftoe images. Whe this optio is disabled, all colors other tha the backgroud color are prited as black. Whe eabled, all colors (other tha black/white) are coverted to a differet grayscale. Fit to page Specifies that the plot is automatically fitted to the page size. Overlay Specifies that GerbTool prits a third color i areas where two differetly colored objects are superimposed over each other. This optio applies oly if you have a color-capable priter. Prit Backgroud Specifies that GerbTool prits the color for the desig backgroud. By default, this optio is off. 40 OrCAD Layout GerbTool User s Guide

49 Commad referece O Note Pritig backgroud colors uses a lot of ik (especially for C-, D-, or E- sized desigs). Use this optio with discretio. Sketch Specifies that GerbTool draws oly the outlies for objects i the desig, rather tha fillig i those objects. Widow Specifies that GerbTool prits oly that area of the desig that falls withi a user-defied widow. Prit Prit Preview Priter Setup Exit Select this commad whe you wat to prit the viewed layers. Use this commad to prit your desig o ay priter/plotter supported by Widows. Use this commad to view how each page of your desig would prit before actual pritig begis. Use the Priter Setup commad to select ad cofigure the curret Widows default priter. Select this commad whe you wat to exit GerbTool. The curret desig file ca be saved, ad you will be prompted to cofirm that you wat to quit if ay layers have bee modified. OrCAD Layout GerbTool User s Guide 41

50 Commad referece Edit meu The Edit meu icludes these commads: Udo, Select, Item, Copy, Move, Delete, Clip, Joi, Rotate, Mirror, Scale, D-Code, Alig Layers, Origi, ad Purge. You ca modify the selectio criteria for all editig commads that require you to modify oe or more database items. GerbTool commads are flexible i the selectio of data to modify. For example, you ca select sigle items, or items withi a widow, group, or complete layer. Typical selectio criteria. With this dialog box, you ca cotrol whether flashes, draws, arcs or ay combiatio of all three are selected. Further, you ca select whether a sigle item, widow, group or layer is selected. I Widow mode, you ca select whether to iclude items that cross the widow boudary. Ad fially, you ca select whether to restrict the selectio to a particular layer or D-Code. You ca ed ay editig commad by choosig the right butto, pressig the ESC key, or selectig aother meu item. & See For details o usig GerbTool shortcut keys, see Chapter 4: GerbTool basics. Shortcut keys are selected with oe keystroke ad operate immediately, eve durig aother commad. 42 OrCAD Layout GerbTool User s Guide

51 Commad referece Udo Use this commad to udo chages you ve made to the curretly loaded database. Udo iformatio is saved i a last i - first out fashio. This meas that you udo chages i the reverse order i which the chages were made. This allows you to udo the most recet chages first. You may also use the shortcut key U to ivoke the udo commad eve durig aother editig commad. O Note Udo must be eabled with the Cofigure commad (Optios meu) prior to makig ay edits, if you pla to use this commad. Udo icreases the amout of memory GerbTool requires. If you do ot require the udo capability, you may disable udo with the Cofigure commad (Optios meu). Disablig udo will release ay memory curretly associated with udo iformatio ad prevet further udo memory use. Select Most editig commads (such as Copy, Move, ad so o) allow you to work with sigle items, widows of items or groups of items. The commads available i the Select meu allow you to maage the groupig of items for use by these editig commads. Whe a commad allows group selectio mode, it will use the curretly selected group created ad maitaied by the differet Select commads. Select groups are also persistet from oe commad to aother. For example, if you rotate the curret select group, the rotated data will remai selected ready for aother commad. The Select meu cotais the followig commads for cotrollig select groups: New Group Use this commad to start a ew group of selected items. Whe you choose this commad, GerbTool prompts you for cofirmatio to clear the curret select group (if ay). This does ot destroy ay data. It simply deselects the curret select group. If you respod affirmatively, GerbTool displays the Group Selectio Criteria dialog box. Group Selectio Criteria dialog box. OrCAD Layout GerbTool User s Guide 43

52 Commad referece Add To Use this commad to select items ad place them i the curret select group. Whe you choose this commad, GerbTool displays the Group Selectio Criteria dialog box, from which you ca choose those items you wish to add to the select group. Remove From Use this commad to select items ad remove them from the curret select group. Whe you choose this commad, GerbTool displays the Group Selectio Criteria dialog box, from which you ca choose those items you wish to remove from the select group. Ivert Use this commad to ivert the curret select group. That is, all curretly selected items are deselected ad all deselected items become selected. Oe use of this commad is to allow you to quickly select all but a few items by first selectig the items you do t wat ad the ivertig the select group. Off Use this commad to clear the curret select group ad remove highlightig from ay highlighted items. This does ot destroy ay data. It simply deselects the curret select group. Item This commad displays a floatig dialog box you ca use to edit pertiet iformatio associated with each database item. I additio, there are extesive cotrols for avigatig from oe item to aother, icludig the ability locate a item based o its sequetial positio i the database, D-Code, X-Y coordiate, et, ad UserData value. You ca also step forward ad backward oe item at a time usig the supplied directioal buttos. Lastly, you ca use the N hot key to automatically advace to the ext item i the database. Edit Item dialog box. 44 OrCAD Layout GerbTool User s Guide

53 Commad referece The UserData field is of special ote, because you ca use this field to attach textual iformatio to idividual database items. Ay text you associate with your database will automatically be saved withi your Gerber files the ext time you save them. This also allows you to pass data to other groups i your orgaizatio trasparetly. A obvious use is to associate actual referece desigators, pi umbers ad et ames with each pad thereby addig itelligece to your Gerber databases. Besides beig able to see UserData usig the Item commad (Query meu), macros also have complete read/write access to each UserData field. This allows some powerful tools to be built upo GerbTool. Other tha a 256-character size limit, there are o restrictios o text associated with a database item. Copy Use this commad to copy sigle items, widows, or groups of items. By specifyig a valid destiatio layer i the Copy to Layer field, you ca copy all selected items to that layer. O Note If you select data from more tha oe layer ad copy to a destiatio layer, GerbTool merges all ito the destiatio layer. If you do ot choose a destiatio layer, GerbTool copies the data ito the respective source layers. Move Delete You ca use this commad to move a sigle item, a widow or groups of items. By specifyig a valid destiatio layer i the Move to Layer field, you ca move all selected items to that layer. As with the Copy commad, if you select data from more tha oe layer, GerbTool merges all moved data ito the destiatio layer. If you do ot choose a destiatio layer, GerbTool moves the data ito the respective source layers. Select this commad whe you wat to delete items from oe or more layers. You ca delete vertices, sigle items, a widow or groups of items. O Note items. If Udo is disabled, you will be prompted for cofirmatio whe deletig OrCAD Layout GerbTool User s Guide 45

54 Commad referece Clip Use this commad to specify a widow i which GerbTool deletes all data with automatic clippig of draws that pass through the widow. If group mode is selected, GerbTool deletes oly those items withi the select group. O Note The O Boudary selectio cotrols whether flashes that straddle a widow boudary are deleted. Joi Use this commad to joi two lie segmets usig several differet methods. Joi Parameters dialog box. Usig Normal mode, GerbTool exteds or trims the two selected lie segmets as eeded so that they coect. Naturally, this commad will ot work for parallel or ear parallel lies. A optio to Normal mode, Trim Secod Lie to First Oly, helps whe you have a log lie i oe directio ad several lies itersectig the log lie. With this optio, GerbTool modifies oly the secod lie you select. The remaiig modes, Chamfer ad Fillet, use the Size field to determie how far back to trim each of the two selected lies before addig the chamfer or fillet. Rotate Use this commad whe you eed to rotate a widow or group of items. You ca select Widow mode or Group mode. You ca also supply a pivot poit (iteractive) or allow automatic calculatio of the ceter of the data for the required pivot poit. O Note If you eter a rotatio factor of 90 or 270 ad the Auto 90 butto is selected, Rotate automatically compesates for asymmetrical pads, such as rectagles, by replacig the D-Code with a equivalet D-Code with opposite dimesios. You ca add ew D-Codes to the appropriate aperture list. 46 OrCAD Layout GerbTool User s Guide

55 Commad referece Mirror Scale Use this commad if you eed to mirror (flip) a group of items either horizotally or vertically. You ca specify the directio to mirror ad whether to prompt for the pivot poit or automatically calculate it. This commad ca also be used to flip a secodary side layer that was desiged as see from the primary side. Use this commad to apply coordiate offsets ad scale to a loaded desig. The offsets ad scale are applied to the selected layers. By applyig a scale factor it is possible to expad or shrik the size of your database. For example, if you desig your boards at 2X you ca set both the X ad Y scale factor to 0.5 to covert your files to 1X. M Cautio You caot udo this commad. Make sure you save ay importat edits before ruig this commad. D-Code The D-Code meu item icludes these commads: Trascode, Expad, Scale, ad Polarity. Trascode Use this commad to chage the D-Code of a idividual item, widow, group or complete layer. By chagig the D-Code of a item, you ca alter its size ad shape. Aother way to chage the size ad shape of a item is to edit the aperture list directly. Expad Use this commad to expad oe or all custom apertures i a desig. This commad is required to plot a desig that cotais custom apertures whe your photoplotter is uable to create the apertures you eed. Whe you choose this commad, GerbTool asks you for the D-Code you wat to fid. You may eter a specific D-Code or you may eter zero to istruct GerbTool to expad all custom apertures. Scale Use this commad to shrik or expad the size of oe or more D-Codes. Oe use of this commad is to create soldermasks automatically. GerbTool adds ew apertures to the correspodig aperture list as eeded based o your specified scale factor. If the Fixed Amout check butto is eabled, GerbTool adds the scale values to each D-Code. Otherwise, each D-Code size is multiplied by the scale values specified. OrCAD Layout GerbTool User s Guide 47

56 Commad referece Polarity Use this commad to cotrol the item level polarity of EIE ad BARCO format files, as well as FIRE9XXX raster fill polygos. Whe usig item level polarity, the orderig of the data is crucial. You may fid that you eed to move data i place, thereby placig the moved data at the ed of the database. O Note Gerber RS-274-D does ot support polarity. Exteded Gerber files oly support polarity at the layer level, which is cotrolled usig the Edit commad from the Layers meu. FIRE9XXX format oly supports raster fill polygos at the item level. Otherwise, layer-orieted polarity is assumed. Alig Layers Origi Use this commad to alig ay misaliged layers. First determie the layer to which all other layers should be aliged (the master layer) ad select a item to use as a referece poit. The select a item, o each layer you wat to alig, that correspods to the referece poit. As you select each item, GerbTool automatically aligs the etire layer. Use this commad to relocate the origi (0,0 poit) of the database. GerbTool prompts you for a poit to defie the ew origi. The film box is moved to the ew origi. O Note This commad causes GerbTool to mark all layers as modified. Purge Use this commad to compact the curretly loaded database for more efficiet use of memory. Sice GerbTool does t actually remove data from memory durig edits, memory may become fragmeted ad less efficiet. Therefore, occasioal purgig ca help GerbTool perform optimally. O Note Purgig destroys ay udo iformatio that curretly exists. Do ot use this commad uless you are sure you do t eed to udo ay previous edits. 48 OrCAD Layout GerbTool User s Guide

57 Commad referece View meu Widow Zoom I Zoom Out Pa All Film Box The View meu icludes commads to cotrol viewig widow locatio ad size. Use this commad to select a ew viewig widow. Two poits are required to defie a widow. These poits defie a rectagle that ecompasses the area that is to become the ew viewig widow. Use this commad whe you wat precise cotrol over the viewig widow. This meu item halves the size of the curret viewig widow usig a ceter poit that you supply. This commad provides a closer look at the displayed data. Doubles the size of the curret viewig widow usig a ceter poit you supply. Use this commad to icrease the size of the viewig widow. Moves the curret viewig widow to a ew locatio. The ew locatio is cetered about a poit you supply. This commad does ot chage the size of the viewig widow. This commad adjusts the size of the viewig widow to ecompass all of the curretly displayed layer(s). If you have deleted data from ay displayed layers, you may eed to use the Extets commad (Query meu) to calculate the curret extremes of the database. Select this commad to adjust the size of the viewig widow to display the cotets of the curretly specified film box. This commad does ot check to see that all data lies withi the film box borders. Therefore, depedig o the film box size, ot all data may be displayed. OrCAD Layout GerbTool User s Guide 49

58 Commad referece Redraw Sketch Overlay Grid This commad redraws the curret viewig widow. This commad toggles sketch mode viewig o ad off. Whe sketch mode is eabled, pads are show with a outlie oly, ad traces are displayed as a sigle thi lie. Besides speedig up redraw times cosiderably, this mode ca also help you idetify stacked pads. This commad toggles overlay viewig mode o ad off. Whe overlay mode is eabled, items become trasparet whe draw atop each other. Whe disabled, items obscure whatever is draw previously. Overlay mode makes it easier to spot stacked pads. This commad toggles the grid display o ad off. O Note Grid is also available as a shortcut key by pressig CTRL+G. Composites Virtual Pael Eables the correct viewig of composite layers. Whe this butto is eabled the polarity of each layer, specified by the Polarity field withi the Edit dialog box, will be hoored. If a layer is specified Clear, all data i that layer is displayed with the curret backgroud color. Virtual pael mode (ad hece the display of virtual paels) may be toggled o ad off usig this commad. You ca also use the CTRL+V shortcut key. Clear Highlights This commad clears ay ad all highlights that curretly exist. Use this commad after a commad such as Highlight (Query meu) or Drill (Tools meu). Highlights This commad toggles the display of ormal highlights o ad off. Normal highlights are all highlights ot idicatig a select group or DRC error. 50 OrCAD Layout GerbTool User s Guide

59 Commad referece Selectios Errors This commad toggles the display of select group highlightig. This does ot chage the actual select group. Oly the highlight display is chaged by this commad. Use this commad to view errors after performig a DRC. If DRC errors exist, the DRC View Errors dialog box appears. DRC View Errors dialog box. Next Jump forward to the ext o-fixed error. Prev Jump back to the ext o-fixed error. GoTo Jump to the curret error, fixed or ot. Prit Prit the curretly selected error o the default Widows priter. The error report icludes a scree capture of the error ad all related iformatio about the error ad items ivolved. Prit All Prits a separate error report for each error i the list. Fixed Toggles the status of a error. Settig the status to fixed allows you to tell at a glace what errors have already bee corrected. Highlights This butto toggles the display of the curret error highlightig. Use this butto to temporarily tur off highlightig to allow easy correctio of the error. Save Use this commad to save the curret viewig widow for later recall. There are eight positios available, 1-8, for savig. The curret viewig widow is saved i the positio that you idicate. Use the Recall commad (View meu) to recall ay of the saved viewig widows. OrCAD Layout GerbTool User s Guide 51

60 Recall Previous Toolbars Split Commad referece Use this commad to recall a previously saved viewig widow. If ay of the eight possible positios does ot have a viewig widow associated with it, the correspodig positios i the meu are disabled. This commad recalls the last viewig widow. This allows you to toggle betwee two viewig locatios. This selectio presets a meu listig all of the available toolbars. You may toggle each toolbar o ad off as desired. This commad splits the drawig area ito multiple paes. By draggig the pae dividers to the desired locatio you ca have up to four separate viewig paes. Each pae may have a differet zoom level ad/or locatio allowig you to view ad edit multiple views of your desig simultaeously. Add meu The Add meu icludes commads you ca use to eter various types of ew database items. This meu icludes the Flash, Draw, Rectagle, Vertex, Circle, Arc Ctr, Arc 3 Pt, Polygo, ad Text commads. O Note GerbTool creates all circles ad arcs usig circular iterpolatio or multiple lie segmets, depedig o the style idicated by the Cofigure commad (Optios meu). Use circular iterpolatio with care, as ot all photoplotters support circular iterpolatio. Segmeted circles ad arcs use the chord agle specified usig the Cofigure commad. Flash Use this commad to add a flash to the active layer. GerbTool prompts for a poit at which to add the flash. As you move the cursor about the scree a outlie shape of the curret D-Code appears. Choose the left mouse butto to add a flash at that locatio. 52 OrCAD Layout GerbTool User s Guide

61 Commad referece Draw Rectagle Vertex Circle Arc Ctr Arc 3 Pt Use this commad to draw lie segmets i the active layer. GerbTool prompts you for a startig poit ad subsequet poits to form cotiuous traces. Choose the right mouse butto or press the ESC key to start a ew trace. Use this commad to draw lie segmets i the shape of a rectagle to the active layer. GerbTool prompts you for a startig corer poit ad a opposite corer poit. Use this commad to add (ad move by draggig the mouse) a vertex aywhere o a existig lie segmet. Use this commad to draw a circle by eterig a ceter poit ad a poit o the radius. The circle is draw o the active layer, usig the curret D-Code, i a couter-clockwise directio. Use this commad to defie a arc by eterig a ceter poit, a poit defiig the radius ad startig agle, ad a poit defiig the edig agle. The arc is draw o the active layer, usig the curret D-Code, i a couter-clockwise directio. Use this commad to defie a arc by eterig its ed poits ad a poit o the arc s circumferece. The arc is draw o the active layer, usig the curret D-Code, i a couter-clockwise directio. O Note To create 90 arcs easily ad quickly, press the 9 key. This automatically costructs a 90 arc. OrCAD Layout GerbTool User s Guide 53

62 Commad referece Polygo Use this commad to select or eter a closed polygo. GerbTool fills or pours the iterior of the polygo usig either a raster fill or vector fill method. This commad is commoly used to create groud plae areas. O Note Raster fillig is ot supported i RS-274-D format Gerber files. Whe eterig a polygo you ca automatically close the polygo by pressig the END key. You ca also close the polygo maually by eterig a poit at the poit that bega the polygo. Regardless of the method, GerbTool the outlies the polygo with the curret D-Code, as displayed i the status bar, ad fills the iterior of the polygo. I Flood Fill mode, GerbTool fills the iterior of the polygo with icreasig aperture sizes. As it fills toward the ceter of the polygo the aperture sizes become larger. I Pour Aroud mode, GerbTool fills the iterior of the polygo, as above, while maitaiig clearace, as specified by the Draw Clearace ad Flash Clearace fields, aroud all circuitry. Polygo Pour dialog box. Sice you ca geerate may smaller polygos to effectively pour aroud the circuitry, you ca use the Miimum Area parameter to specify the miimum size area. GerbTool elimiates ay filled areas that would be smaller tha the specified Miimum Area. The Pour Aroud optio also supports three additioal modes: Outlie, Solid ad Hatch mode. If you select Outlie mode, GerbTool does ot fill the resultat polygos. You ca use this type of output to drive PCB prototypig equipmet. 54 OrCAD Layout GerbTool User s Guide

63 Commad referece If you select Solid mode, GerbTool completely fills the resultat polygos usig the same methods described for the Fill commad above. If you select Hatched mode, GerbTool fills the resultat polygos with a crosshatched patter, as specified i the Hatch Parameters sectio of the Edit dialog box. Up to three lies may be used, with differet sizes ad agles for each lie. Text Use the Text commad to isert text ito the database as a sequece of lie segmets. You ca cotrol the lie thickess of the iserted text by chagig the curret D-Code. You ca also rotate or slat text, ad you ca specify the height ad width of the text, alog with the iter-character ad lie spacig. You ca select ay fot from the Fot dropdow list. This list cotais all the TrueType fots o your system ad the special GerbTool-Stroke fot. This special fot is istalled with GerbTool ad is a simple fot that does ot use polygoal data or egative polarity. Followig is a list of importat poits to remember whe usig TrueType fots: TrueType fots require the use of polygoal data ad a combiatio of positive ad egative polarity. By ature, oly RS-274-X, FIRE9000 ad EIE file formats support egative data ad polygoal data. GerbTool modifies the layer setup by addig additioal composite layers. Ay previously geerated report files that specify layer umbers will be subsequetly out of sychroizatio. Because TrueType fots require the use of composite layers, you must eable composite viewig to view the text properly. Although ruig this commad eables this mode automatically, you may use the View/Composites commad to toggle this mode o ad off. GerbTool provides a text editig widow i which you may eter as may lies of text as eeded. You have full editig ad scrollig capabilities, ad ca load exteral files ad save text files exterally. The Text commad displays the Text dialog box show below. OrCAD Layout GerbTool User s Guide 55

64 Commad referece Text dialog box. Layers meu Edit The Layers meu icludes commads for maagig the idividual layers withi your desig. The meu selectios iclude Edit, Colors, Create, ad Redlie. Use the Edit commad to edit layers i your desig with the Layers dialog box. The effects of editig certai fields withi the dialog box differ, depedig o whether you are loadig a desig or editig after loadig. Withi the Layers dialog box you specify: The path used to locate the Gerber ad aperture list files Gerber files Aperture list files Layer ames Layer visibility Flash/draw colors Layer type File format Exteded Gerber compositig istructios 56 OrCAD Layout GerbTool User s Guide

65 Commad referece Layers dialog box. While loadig, edit the Path field to tell GerbTool where to fid the specified files if they do ot cotai a path as part of the fileame. Eterig a wildcard specificatio (for example, *.GBR) i the Fileame field displays the file chooser. You ca choose more tha oe fileame i which case all selected fileames are etered i oe step. You ca also eter a wildcard i a Aperture List field to obtai the file chooser. If you select a fileame, GerbTool eters it i the curret field. O Note You do ot eed to fill i the Aperture list field for each specified Gerber file. If a Aperture List field is left blak, it assumes the cotets of the previous Aperture List field. If the Aperture List field for the first specified layer is blak the it assumes the curretly cofigured default aperture list file. If you chage the Path field after loadig, GerbTool marks all Gerber ad aperture list files as modified. The, you ca save them i a locatio other tha the locatio from which you loaded them. Chagig the cotets of a Fileame field after a desig is loaded causes that layer to be marked as modified. The, you ca save a layer uder a ew fileame. If you eter a fileame ito a previously empty Fileame field, GerbTool attempts to load the ewly specified Gerber file. If it does ot exist, you ca create it. Chagig the cotets of a Aperture List field causes GerbTool to load the specified aperture list, if it is ot already loaded, ad lik it to the correspodig Gerber file. Regardless of whether you are loadig or ot, the Visibility butto cotrols the visibility of the specified layer, the Flash ad Draw color buttos cotrol the color of flashes ad draws respectively ad the Layer Type butto displays a meu of layer types from which you ca choose. OrCAD Layout GerbTool User s Guide 57

66 Commad referece O Note It is importat to specify the Layer type for each layer, because several GerbTool commads check this field for the proper type before processig each layer. For example, the Pad Removal commad (Tools meu) oly operates o ier-type layers. The followig is a descriptio of each field withi the Edit dialog box (from the Layers meu). Path Specifies the path to the directory cotaiig the Gerber ad aperture list files. Cut, paste above, ad paste below Use these to re-order the layer structure both before ad after a desig is loaded. I additio, if you cut a layer from a loaded desig without pastig the layer, GerbTool prompts you to uload that layer from memory. The, you ca free memory if your resources become low. Layer Specifies the curret layer. To make a layer curret, click o the layer withi the scrollable layer list. Fileame Specifies the ame of a Gerber file loaded ito the curret layer. If you do ot iclude a explicit path, GerbTool uses the cotets of the Path field to locate the file. Aperture list Specifies the aperture list file to associate with the curret layer. O Note If the specified aperture list is ot already i GerbTool format, it is coverted automatically. You do ot eed to fill i the Aperture list field for each specified Gerber file. If a Aperture List field is left blak, it assumes the cotets of the previous Aperture List field. If the Aperture List field for the first specified layer is blak the it assumes the curretly cofigured default aperture list file. Layer ame Specifies a composite layer ame used by the exteded Gerber format files. This is ot a fileame. Visibility Cotrols the visibility of the specified layer. Optios are O, Off or Ref. Flash/Draw Cotrols the color of flashes ad draws, respectively. Layer (Type) Specifies a layer type of Top, Ier, Bottom, Plae, Composite, or Other. O Note It is importat to specify a type for each layer, because several GerbTool commads check this field for the proper type before processig each layer. For example, the Pad Removal commad (Tools meu) oly operates o ier layers. Polarity Specifies the polarity of layers to form composites. Select either Dark or Clear. This field is oly valid for exteded Gerber ad FIRE9000 layers. Lik Liks layers together to form composites. Eter a umeric value. GerbTool liks together layers with idetical lik umbers to form a composite. This field is oly valid for exteded Gerber ad FIRE9000 layers. 58 OrCAD Layout GerbTool User s Guide

67 Commad referece File format Specifies the correct data format before loadig begis. With these buttos, you edit the selected layers format, whether global or local, add or remove local formats, ad automatically detect the format of oe or more layers. Edit Use this butto to edit the file format of the selected layer. If that layer has a local format added (the File Format Edit butto will have Local to its left), the format GerbTool displays for editig is specific to the selected layer. Otherwise, GerbTool uses the global format. (See the File meu s Format commad i Chapter 7: Commad referece for more iformatio o editig file formats.) Add Local Adds a local format to the curretly selected layer, which you ca use to specify that the layer has a differet format tha other layers of the same file type. By default, each layer refereces a global format commo to all layers of a particular type (for example, Gerber). You ca use local formats to load differet file types ito the same desig. The you ca simultaeously view ad edit ay files i the same desig regardless of their file type. Del Local Removes a local format. Detect Detects the file format of the selected layer ad updates the format associated with that layer. The effects of editig certai fields withi the Edit dialog box differ, depedig o whether you are loadig a desig or editig after loadig. Colors The Colors commad displays the Layers Color dialog box. Use this dialog box to specify: Visibility: ON, OFF or REF Draw ad Flash Color Layers Color dialog box. OrCAD Layout GerbTool User s Guide 59

68 Commad referece Whe a layer is o, idicated by a red box aroud the layer umber, it is both visible ad editable. Whe a layer is off, it is either visible or editable. A black box aroud the layer umber idicates that it is the referece layer, i which case it is visible but ot editable. O Note If you fid that you do t use the referece visibility settig, you ca disable the availability of the referece status with the Cofigure commad (Optios meu). This commad is ot available if the ColorBar is visible o the widow. Create Redlie This commad creates a ew empty layer with the fileame TEMP####.EXT, where <####> is the layer umber ad <EXT> is the curretly cofigured extesio for Gerber files. If you later decide to save the cotets of this layer you may use the Edit commad (Layers meu) or the Save commad (File meu), usig the Save As optio, to chage the fileame to somethig more meaigful. The Redlie commad displays a meu with the followig commads: Add Text Delete Add Balloo Text Properties Add Arrow View Redliig Sketch Use the Redlie meu to add commets ad other iformatio that should be stored separately from ormal layer iformatio. Every layer may have its ow associated redlie iformatio attached to it. GerbTool displays redlie objects usig the curret redlie color ad D-Code. If you have ot specified these settigs i the Display dialog box, GerbTool uses the default settigs. Whe you save a desig, GerbTool stores redliig iformatio i a separate file, located i the same directory as the desig file. The redlie file has the same ame as the desig file, but has a.red fileame extesio. 60 OrCAD Layout GerbTool User s Guide

69 Commad referece Add Text Use this commad to isert text ito the curretly selected layer s redlie file. You ca specify text size, rotatio, slat, mirrorig, ad spacig. You ca also load text from a exteral file ad save the text to a exteral file. Add Balloo Text Use Add Balloo Text to isert a balloo with text ito the curretly selected layer s redlie file. You ca specify text size, rotatio, slat, mirrorig, ad spacig. After specifyig text you wish to have appear i the balloo, you specify where you wat the balloo arrow to poit ad the locatio of the upper-left corer of the balloo box. Repeatedly specifyig poits iserts multiple balloos cotaiig the same text. You ca also load text from a exteral file ad save the text to a exteral file. Add Arrow Use this commad to isert a arrow of specified locatio, directio, ad size ito the curret layer s redlie file. You specify the arrow s tip first, followed by the tail (which idicates the directio ad legth). Sketch Use Sketch to isert freeform drawigs ito the curret layer s redlie file. You ca draw lies, curves ad other shapes, simply by clickig ad draggig. Delete Use Delete to delete items from the redlie file. Properties Use Properties to specify the D-Code ad color to use whe addig subsequet redlie iformatio. Existig D-Code iformatio is ot affected by chagig these properties. View Redliig Use View Redliig to see the associated redlie iformatio for all of the curretly visible layers. Whe this meu item is checked, redliig iformatio appears o the scree as well as whe prited. OrCAD Layout GerbTool User s Guide 61

70 Commad referece Apertures meu The Apertures commad displays the Edit, Report, Load, Uload, Merge, Compact, Covert, ad Save commads. Edit Use this commad to edit a previously loaded aperture list. A list of curretly loaded aperture lists, if such exists, appears for you to choose from. GerbTool displays the selected aperture list for you to edit. Aperture editig dialog box. If, after editig a aperture list, you wat to discard the chages you ve made, you ca choose the Cacel butto. To keep your chages, at least temporarily, choose the OK butto. GerbTool updates the i-memory copy of the aperture list. To save a aperture list, you must use the Save commad (Apertures meu). 62 OrCAD Layout GerbTool User s Guide

71 Commad referece The Aperture editig dialog box cotais two sectios: a list for selectig apertures to edit ad the actual editable fields. The Positio field is for referece oly ad is ot editable. The ie remaiig fields are: Field Possible values D-Code Shape Roud, Square, Rectagle, Oblog, Dout, Diamod, Octago, Thermal, Therm45, Target, Complex, Custom Size X Size Y Fileame Custom aperture fileame or aperture macro Type Surface-mout or through-hole Tool Tool Size Leged D-Code Normally, you select a D-Code from the apertures list, but you ca chage this field to add ew apertures. Shape Choose a shape for your aperture. If you choose Custom, the Fileame field becomes available for you to specify the fileame of the custom aperture (see Chapter 10: Usig custom apertures). GerbTool automatically adds the required.cus extesio, if eeded, whe loadig the custom aperture. If you choose Complex, the Fileame field becomes available for you to specify a valid aperture macro ame. Size X/Size Y Whe editig the Size X field, the Size Y field, if curretly set to 0.0, also assumes the value of the X field. Fileame If the curret aperture shape is Custom, eter the fileame of a custom aperture file. You ca use a wildcard to ivoke the file chooser. If the curret aperture shape is Complex, eter a valid aperture macro ame. Type Specifies whether the D-Code represets a surface mout or through-hole pad. This iformatio is eeded whe buildig multilayer etlists. Tool Edit this field if you ited to extract NC Drill iformatio from a layer, or merge a NC Drill file ito a layer, usig this aperture list. Size Specifies the size of the tool idicated i the Tool field. OrCAD Layout GerbTool User s Guide 63

72 Commad referece Leged Used whe creatig a drill drawig usig the Drawig commad from the Drill meu. You ca eter a D-Code to represet this tool i a drill leged. Speed edit Specifies that GerbTool chage the operatio of this dialog box to make it easier to eter aperture lists maually. Normally, whe editig a aperture list, pressig the ENTER key updates the curret aperture ad advaces to the ext aperture. Whe you reach the ed of the aperture list, ew apertures are added automatically. Movig from field to field is accomplished usig the TAB key or mouse. The Speed edit optio activates oly the Shape ad X/Y size fields. Furthermore, the ENTER key moves from field to field, except for the Y size field. While editig the Y size field, the ENTER key advaces to the ext record, as usual, before movig to the Shape field. This chage i operatio allows fast aperture list creatio usig oly the ENTER key to move from field to field ad to advace to the ext record. Edit AD ad Edit AM These buttos are oly active if the shape is Complex. Use them to edit the exteded Gerber aperture defiitio (AD) ad the aperture macro (AM) respectively. For FIRE9xxx aperture lists, use the Edit AD butto to edit a aperture defiitio i ative FIRE9xxx format. Search Use this to search for a aperture that cotais the text strig you specify. You ca search for ay text appearig i the scrollable aperture list. For example, you could eter D200 to fid that particular D-Code or you could eter rect to fid the ext occurrece of a Rectagular aperture. You could also eter.05 to fid the ext occurrece of a 50-mils aperture. Report Select this commad to geerate a Aperture Report. A aperture report details the D-Codes, alog with their defiitios, used o a per layer basis. Icluded i the report are use couts for both flashes ad draws. O Note If a aperture has a ukow shape, or is zero i size, GerbTool highlights it for easy recogitio. Sigle layer aperture use report. 64 OrCAD Layout GerbTool User s Guide

73 Commad referece Combied layer aperture use report. Geerate Displays a report for the layer specified i the Layer field. Eterig all or 0 i the Layer field istructs GerbTool to geerate a Combied Aperture Report for all loaded layers. Use the scroll bar to view all of the report if it does ot fit etirely withi the widow. You ca edit the report. Save Saves the report to a file. Prit Prits the report to the default Widows priter. Load Select this meu item whe you eed to load or create a aperture list. GerbTool prompts you to specify a file. You ca use a wild card specificatio to obtai a list of files from which to choose. If the specified aperture list does t exist, you ca create a ew oe. GerbTool creates a aperture list, usig default values, the loads it. If you specify a existig aperture list, GerbTool simply loads the specified aperture list. O Note You may load ad edit aperture lists idepedet of a desig. Uload Merge Use this commad to remove a previously loaded aperture list. GerbTool removes the aperture list you select, if it is ot required by the curretly loaded desig. If you have modified the aperture but have ot saved the chages, GerbTool prompts you to do so. Use this commad to merge two or more loaded aperture lists. GerbTool merges all aperture lists associated with the curretly viewed layers ito a ew aperture list. Each layer is the associated with the ew aperture list. GerbTool remaps the D- Codes of each layer accordigly. O Note Save the ew aperture list if ay remapped layers are saved. OrCAD Layout GerbTool User s Guide 65

74 Compact Commad referece Use this commad to remove uused ad redudat apertures withi a aperture list. Select a aperture list to compact. Each layer associated with the selected aperture list is the re-associated with the ew aperture list ad the D-Codes remapped accordigly. O Note If you save remapped layers, remember to also save the ew aperture list. Covert Save Query meu GerbTool has the ability to covert most CAD ad photoplotter aperture list formats directly ito GerbTool format. (See Chapter 3: Quick start for a complete list.) You ca specify a iput fileame ad select the appropriate coverter usig the pull-dow list. Use this commad to optioally save ay modified aperture lists. The Query commad displays the Item, Net, UserData, Highlight, Measure, Copper, ad Extets commads, which are described i the followig sectios. Item Iformatio Use the Item Ifo commad to obtai iformatio o idividual items withi the database. The iformatio appears i a dialog box as show below. Query Item display. 66 OrCAD Layout GerbTool User s Guide

75 Commad referece As you select items, GerbTool highlights each item ad its D-Code defiitio, alog with the X-Y locatio ad other iformatio. You ca select items with the mouse, or use the N key to automatically advace to the ext sequetial item i the database. Net Use this commad to highlight true multilayer ets usig a variety of colors. Selected ets remai highlighted util you specifically clear them. Query Net dialog box. Query by Mouse, Net or UserData You ca select a et at aytime by pressig the left mouse butto aywhere o a lie segmet or flash. You ca also search for ets by their GerbTool et umber or their UserData. Search For Specifies the et or UserData value for which to search. Fid Choose this butto to have GerbTool fid ad highlight the et that cotais the value i the Search For field. Clear Highlights Choose this butto to clear ay ets curretly highlighted. This does ot chage the et; it merely removes the highlightig. Color This chages the color of subsequet et selectios whe you select a ew color. Previous selectios are ot altered. Add UserData Oce you have a et selected, you ca globally add a UserData value to all items i the selected et. This provides a easy way of assigig meaigful et ames to your ets. O Note This commad relies o the etlist iformatio supplied by a previous ivocatio of the Geerate commad. If a etlist does ot exist, GerbTool prompts you to create oe. OrCAD Layout GerbTool User s Guide 67

76 Commad referece UserData Use this commad to highlight all items that cotai a specific UserData value. Each selected item remais highlighted util you specifically clear the highlightig. Query UserData dialog box. Search For Specifies the et or UserData value for which to search. Fid Choose this butto to have GerbTool fid ad highlight the et that cotais the value i the Search For field. O Note For a successful match, the search value ca be located aywhere withi a item s UserData value. This meas that a search value DATA would match both DATA32 ad MYDATA. The compariso is ot case-sesitive. Clear Highlights Choose this butto to clear highlightig. This does ot chage ay items; it merely clears the highlightig. Color Chages the color of subsequet et selectios whe you select a ew color. Previous selectios are ot altered. Measure The Measure commad presets a sub-meu with the followig selectios: Poit to Poit Edge to Edge Ceter to Ceter Poit to Poit Use this commad to obtai accurate measuremets of your data. GerbTool first prompts for a base poit from which to measure. As you move the cursor away from the base poit, GerbTool displays the distace i X ad Y ad true legth i the prompt area. Choosig the left mouse butto chages the base poit to the curret cursor positio. 68 OrCAD Layout GerbTool User s Guide

77 Commad referece Edge to Edge This commad measures the actual miimum distace betwee two Gerber data items. GerbTool first prompts you to select a base item. As you select additioal items, GerbTool displays the actual miimum distace betwee items i X ad Y, as well as true legths i the prompt area. Ceter to Ceter Usig this commad you ca measure the actual distace betwee the ceters of two Gerber data items. GerbTool first prompts you to select a base item. As you select additioal items, GerbTool displays the actual distaces betwee the ceters of the items i the X ad Y axes, as well as true legths, i the prompt area. Highlight Copper Extets Use this commad to highlight all occurreces of a specified D-Code. You ca restrict your selectio to flashes or draws or you ca select both. You ca also specify a particular layer. The selected D-Codes remai highlighted util you tur off the highlight with the Highlights commad (View meu) or H shortcut key, or whe you select aother group of items with this commad. This commad accurately calculates the amout of copper used o a layer usig a high-resolutio bitmap method. GerbTool scas all visible layers. Use this commad to determie the data extets of all loaded layers. I additio to displayig the extets iformatio, GerbTool also updates its iteral data extet iformatio. This allows the All commad (View meu) to correctly ceter the data after you ve made edits to the database. By selectig the True Size toggle butto, you cotrol whether the extets displayed take the true size of each database item ito accout or just their ceter poits. Selectig the Iclude Virtual Paelizatio toggle butto allows virtual paels to be icluded i the extets calculatios also. OrCAD Layout GerbTool User s Guide 69

78 Commad referece Optios meu Grid Sap The Optios commad displays the Grid Sap, Ortho Lie Sap, Arcs 360, Metric, ad Cofigure commads. Use this commad to toggle grid sappig o or off. See the Cofigure commad (Optios meu) for iformatio o chagig the appearace of the grid. O Note This commad is also available as a shortcut key, CTRL+S. Ortho Lie Sap Use this commad to toggle orthogoal sap mode o or off. Whe eabled, GerbTool forces all lies draw iteractively to the specified agle. See the Cofigure commad (Optios meu) for iformatio o chagig the sap agle. O Note key. You ca temporarily override the curret settig by holdig dow the CTRL Arcs 360 Use this commad to toggle iterpolated arcs o or off. This settig affects the method of creatig arcs used by the Arc Ctr, Arc 3 Pt, ad Circle commads (Add meu). If eabled, GerbTool creates all arcs usig 360 circular iterpolatio. If disabled, GerbTool creates all arcs usig arcs of 90 or fewer degrees. This does ot affect the way Gerber data is read from a file. It oly pertais to addig ew arcs with the above metioed commads. O Note Not all photoplotters support circular iterpolatio. Metric This meu item toggles metric mode o or off. Whe metric mode is eabled, GerbTool displays all iformatio ad editig fields that represet sizes ad distaces (for example, coordiates) i metric format. 70 OrCAD Layout GerbTool User s Guide

79 Commad referece Cofigure Use this commad to chage GerbTool s cofiguratio ad may of the default startup settigs. Whe you choose this commad, GerbTool displays a tabbed dialog box that cotais the followig topics: Geeral, Display, Fuctio Key/Mouse, Ap List Coverters, Paths, Files, Extesios, User Meu, ad Macro Files. Geeral This tab displays the curret values of various geeral program settigs. Geeral tab. The New Desig Wizard should igore files with these extesios Eter ay fileame extesios that you kow are ot used for Gerber or aperture list files. The more extesios that GerbTool is able to igore, the faster the New Desig Wizard builds a ew desig file. Prit Border Text Specifies the text that appears i the border of check plots that are geerated whe pritig ad exportig to HPGL ad PostScript. GerbTool looks for the keywords $DATE, $TIME, $DESIGN ad $PROG. If ay of these keywords are foud, GerbTool replaces them with the appropriate text. All other text specified appears i the border verbatim. Text Editor Specifies the text editor that GerbTool starts whe you are preseted with a file to view or edit. OrCAD Layout GerbTool User s Guide 71

80 Commad referece Max Layers Cotrols the umber of layers that GerbTool ca hadle. The valid rage of values is Use the miimum value that satisfies your requiremets i order to coserve memory. O Note This parameter will ot become effective util the ext time you start GerbTool. Max Aperture Size Specifies the maximum aperture size that GerbTool creates for filled polygos. Plae Resolutio Specifies the Dots Per Ich resolutio of the bitmap created whe processig a power/groud plae durig etlist geeratio. To allow maximum speed, keep this value to a miimum. Default is 150 DPI. Chord Agle Specifies the chord agle used whe creatig segmeted arcs usig editig commads. For example, a chord agle of 5 would result i 18 separate lie segmets for a 90 arc. Lie Sap Agle Specifies the agle to which lies are forced if Ortho Lie Sap is eabled. Flags Use this field to cotrol some aspects of GerbTool s low-level operatios i the field. Typically you would be istructed by GerbTool Techical Support persoel o how to modify this parameter. The value is etered as a hexadecimal umber. Udo Specifies whether or ote GerbTool retais udo iformatio. If you disable this optio, ay curret udo iformatio is destroyed. Layer Ref Determies whether or ot ref layer status is available. If you fid that you do t use ref status, you ca disable it by deselectig this box. 72 OrCAD Layout GerbTool User s Guide

81 Commad referece Display This tab displays the curret settigs that affect the GerbTool widow. Display tab. Grid Specifies the grid size. You may select a pre-defied grid size or eter a value i the size X/Y fields. Film Box Specifies the film box size ad color. Chage the curret film box size by editig the size X/Y fields. Chage the film box color by choosig the Color butto. Zoom, Limit or Ed Cap Use the Limit field to limit how far GerbTool ca zoom i. With certai combiatios of scree resolutios ad file formats, the display of items at extreme magificatio ca appear distorted. Use this settig to prevet this situatio from occurrig. The Ed Cap field specifies whe GerbTool should stop attemptig to draw ed caps o draw lies. If the thickess of a lie (i pixels) is less tha or equal to this parameter, o ed caps will be draw. Higher values provide decreased redraw times at miimum zoom levels. O Note Ed Cap oly affects redraw speed ad has o effect o your database. Highlight Colors Use these buttos to cotrol the colors used whe highlightig database items. Cross Hair The X ad Y fields provide cotrol over the size of the drawig area cross hair cursor. Eter 0,0 for a full scree cursor. OrCAD Layout GerbTool User s Guide 73

82 Commad referece Backgroud Color Use this butto to chage the Drawig Area backgroud color. As with all color buttos withi GerbTool, simply click o the butto for a list of available colors. Miimize Redraws This check box cotrols whether or ot GerbTool miimizes the amout of redrawig it does. If you are a experieced user you may be comfortable redrawig the scree oly whe you wat. O Note Regardless of this settig, you may always iterrupt a redraw, without affectig the curret commad, by pressig the ESC key. Fuctio Key/Mouse This tab displays the curret fuctio key/mouse commad assigmets. Fuctio Key/Mouse tab. You ca chage ay of the commads assiged to the mouse ad fuctio keys by selectig from the drop dow lists. Ay chages you make become effective immediately after choosig the OK butto. This also saves the curret key assigmets so they are available the ext time you start GerbTool. O Note I additio to commad ames, you ca also program fuctio keys with GerbTool Macros, allowig virtually all of GerbTool s power to be withi oe keystroke. 74 OrCAD Layout GerbTool User s Guide

83 Commad referece Ap List Coverters This tab displays a list where you select the aperture list coverters you require. Ap List Coverters tab. This list shows all aperture list coverters foud i the GerbTool program folder. The curret coverters are at the top of the list with a check mark by them. You ca select or deselect coverters as required. As a geeral rule, the fewer the better. You ca also chage the title of a coverter by clickig o a item i the list ad the clickig o the title. You ca the type i a ew ame. The use couts associated with each coverter allows GerbTool to try the most popular coverters first durig automatic aperture list coversio. This ca speed up the process cosiderably. O Note To add additioal.acr files to GerbTool, copy them ito the folder specified by the Source Folder field. OrCAD Layout GerbTool User s Guide 75

84 Commad referece Paths, Files, Extesios This tab displays edit fields for various program default values regardig paths, files, ad extesios. Paths, Files, Extesios tab. Aperture Lists This field tells GerbTool to look for all aperture list files, that do t have a explicit path, i this directory. This field replaces the GTMAPDIR eviromet variable used i previous versios of GerbTool. Custom Apertures This field tells GerbTool to look for custom aperture.cus files i this directory. Normal This field specifies the default aperture list file that GerbTool loads if o other aperture list is specified. Custom This field specifies the aperture list used by all custom aperture files.cus loaded. Default Extesios These edit fields specify the default fileame extesios for the idicated file types. 76 OrCAD Layout GerbTool User s Guide

85 Commad referece User Meu This tab displays the curret user meu cofiguratio so you ca make chages as desired. User Meu tab. Label Use this field to type the meu item label text. A character prefixed with the ampersad (&) is cosidered the meu item hot key. Commad Use this list to select either a macro ame or commad ame. Add Choose this butto to add a ew item to the User meu. GerbTool uses the curret value i the Label ad Commad fields to costruct the meu item. Remove Choose a existig meu item i the list, the choose this butto to remove the item. If you add a item ad the wat to chage it, you must remove it ad add it agai. OrCAD Layout GerbTool User s Guide 77

86 Commad referece Macro Files This tab displays a list of which Macro files you wat to load the ext time you start GerbTool. Macro Files tab. This list shows all Macro files foud i the GerbTool program folder. You may select or deselect Macro files as required. O Note To add additioal Macro files to GerbTool, copy them ito the folder specified by the Source Folder field. Macro meu Ru The Macro meu icludes: Ru Load Developer Record This commad prompts you to select a macro to ru. All macros loaded at program startup ad through the Load commad are available. 78 OrCAD Layout GerbTool User s Guide

87 Commad referece Load Use this commad to load additioal macro files ito GerbTool. You ca iclude ay macros preset i the specified file i GerbTool s list of available macros. & See To have GerbTool automatically load a Macro file at startup, see the Cofigure commad described earlier i this chapter. Developer Record This commad starts the Macro Developer. If the Macro Developer widow is miimized, this commad restores the Macro Developer widow, allowig you to edit the curret macro. If the Macro Developer is ot already o the scree, you are prompted to select a macro file to edit. The selected macro file is loaded ito the Macro Developer, ad displayed o the scree. This commad toggles the Macro Developer s record mode o ad off. Whe selected, the Macro Developer widow appears miimized if it is ot already restored. Both the Macro Developer title bar ad the presece of a checkmark o this meu item idicate that the record mode is o. Whe the record mode is o, user commads are automatically captured ad recorded to the Macro Developer. After the desired sequece of commads is captured, you ca stop the recordig by choosig Record from the Macro meu. To save the recorded macro 1 Ope the Macro Developer by either selectig Macro/Edit or by clickig o the Restore or Maximize buttos o the miimized Macro Developer widow. 2 If desired, chage the ame of the macro o the MACRO lie to reflect what the ewly created macro does. 3 Select File/Save from the Macro Developer s meu. To ru the macro 1 I the Macro Developer, choose Ru Macro from the Debug meu, or withi GerbTool, choose Ru Macro from the Macro meu. 2 From the Macro meu, choose Load. 3 From the Macro meu, choose Ru. OrCAD Layout GerbTool User s Guide 79

88 Commad referece Tools meu The Tools commad displays the Paelize, DRC, Soma, Teardrops, Netlist, Test Poits, Pad Removal, NC Drill, Vet, Covert, Lyr Spread, Fix SS, ad Macros commads. O Note GerbTool s Test Poits tool is ot available with OrCAD Layout. Paelize The Paelize commad creates multiple copies of a desig i oe film box. This allows multiple copies of the desig to be maufactured as oe pael. Whe you choose the Paelize commad, GerbTool displays the Paelize/Vet Parameters dialog box. Paelize/Vet Parameters dialog box. Auto Pael Provides automatic placemet of the maximum umber of copies of the board image, o a sigle pael. Virtual Allows GerbTool to paelize your desig without actually duplicatig layer data i the database. Virtual paelizatio provides may beefits, icludig automatic updatig of all images durig edits ad drastically reduced file sizes. Further, if you wat to plot your desig o a exteded Gerber or FIRE9xxx compatible plotter, GerbTool automatically iserts the proper step-ad-repeat codes ito your Gerber data. Edge to Edge Spacig (available whe Auto Pael is selected) The values set the miimum distace betwee adjoiig edges of the image copies i the X ad Y axes. 80 OrCAD Layout GerbTool User s Guide

89 Commad referece Poit to Poit Spacig (available whe Auto Pael is ot selected) The values set the miimum distace betwee adjoiig edges of the image copies i the X ad Y axes. Copies The values set the umber of copies i the X ad Y axes. O Note Although GerbTool copies oly visible layers, all layers of the origial image remai aliged after paelizatio. Miimum Border Spacig Values set the miimum distace betwee the edges of the image copies ad the edge of the pael. Auto Vet Defies the shape ad placemet of flashes o the pael outside the image areas. GerbTool adds the patter spacig ad aperture selectio to the database. Automatic vetig ca occur durig paelizatio, regardless of whether or ot the paelizatio is automatic. Vetig may be targeted to ay layers i the Gerber file. Vet to Image Spacig Sets the spacig betwee the image copies ad the vetig area. Patter Spacig Sets the spacig betwee the flashes i the vet patter. D-Code Sets the size ad shape of the flashes. To perform maual paelizatio 1 Activate those layers you wat to iclude i the paelizatio. 2 Select the Paelize commad from the Tools meu. GerbTool displays the Paelize editig dialog box. 3 Deselect the Auto Pael butto. 4 Eter the umber of rows ad colums i the Copy fields. 5 Eter the Edge to Edge ad Miimum Border Spacig values. 6 Choose the OK butto. 7 Draw a selectio box aroud the area you wat to copy. GerbTool previews the pael layout. After askig for cofirmatio, GerbTool completes the paelizatio process. Depedig o the settig of the Virtual butto, GerbTool either copies the proper umber of images ito the database or otes the umber of copies ad their locatio for display purposes. OrCAD Layout GerbTool User s Guide 81

90 Commad referece To perform automatic paelizatio 1 Activate those layers you wat to iclude i the paelizatio. 2 Select the Paelize commad from the Tools meu. GerbTool displays the Paelize editig dialog box. 3 Select the Auto Pael butto. 4 Eter the Edge to Edge ad Miimum Border Spacig values. 5 Choose the OK butto. GerbTool automatically calculates the maximum umber of images that fit iside the curret film box, the previews the pael layout. After askig for cofirmatio, GerbTool completes the paelizatio process. Depedig o the settig of the Virtual butto, GerbTool either copies the proper umber of images ito the database or otes the umber of copies ad their locatio for display purposes. To perform automatic vetig 1 Check the Auto Vet butto withi the Paelize editig dialog box. 2 Eter the Vet to Image Spacig values ad the Patter Spacig values. 3 Eter the D-Code values. After paelizatio, GerbTool fills the specified area with the defied patter of flashes. 6 Tip I both automatic ad maual vetig, the style of vet patter is customized usig custom apertures. For example, you ca create a hatch or cross hatch patter usig a diagoal or cross shape custom aperture. Be sure to set the height ad width of the overall size of the custom aperture i the aperture list. 82 OrCAD Layout GerbTool User s Guide

91 Commad referece To perform virtual paelizatio 1 Activate those layers you wat to iclude i the paelizatio. 2 Select the Paelize commad from the Tools meu. GerbTool displays the Paelizatio editig dialog box. 3 Select the Virtual Layers butto. GerbTool displays a dialog box listig the loaded layers. 4 Select those layers you wat to iclude i the virtual paelizatio ad choose the OK butto. 5 Proceed with either automatic or maual paelizatio. GerbTool modifies the database with the umber of copies ad their locatio for display purposes. Virtual pael mode (ad hece the display of virtual paels) may be toggled o or off usig the CTRL+V shortcut key. GerbTool also iserts step ad repeat codes ito NC Drill output data if you select the Virtual butto. This may be ecessary to drill large paels if your NC equipmet is memory limited. O Note Although o data is duplicated durig virtual paelizatio, the data origi is modified to ceter the images withi the pael. Therefore, it is still ecessary to save your desig after paelizatio. If your desigs are plotted o a plotter that does ot support step-ad-repeat codes, you must ru the Paelize commad without the Virtual butto selected ad save your paelized Gerber files before you sed them to the plotter. OrCAD Layout GerbTool User s Guide 83

92 Commad referece DRC The DRC commad checks to see that your desig meets miimum item to item spacig requiremets. Whe you select DRC from the Tools meu, GerbTool displays the DRC dialog box. DRC dialog box. Report File This is the file i which all errors are logged. Eter a valid fileame to set the fileame for the DRC error file. Layer This is the target layer for the DRC. By default, GerbTool uses the curret active layer i the Layer field. You may override this by eterig a differet layer. O Note If you eter all or 0 i this field, GerbTool processes all viewed layers. Highlight Layer Specifies a optioal layer to which GerbTool copies all database items that are part of a DRC error. That way, you ca easily see the whole picture ad prit all errors at oce. To disable this feature, eter oe or 0 i this field. Border Layer Specifies the layer that cotais the desig border. If you have a layer with just the border o it you may specify this layer here. To disable border spacig checks, eter oe or 0 i this field. Pad/Pad Specifies the miimum spacig allowed betwee pads. Pad/Trace Specifies the miimum spacig allowed betwee pads ad traces. Trace/Trace Specifies the miimum spacig allowed betwee traces. 84 OrCAD Layout GerbTool User s Guide

93 Commad referece Border Specifies the miimum spacig allowed betwee ay item ad the border specified i the Border Layer field. Flash Specifies the miimum pad size. Trace Specifies the miimum trace size. Mi Rig Specifies the miimum aular rig required. The Aular Rig optio compares the diameter of the flash o the DRC layer to the diameter of the flash o the drill layer with the assumptio that the drill layer ormally cotais a flash at each pad locatio usig a smaller size tha the DRC layer. The Mi Rig value is the differece i diameters. Select whether the size of each drill layer flash is take from the D-Code size or the Tool size. Through-hole pads that do ot have a correspodig drill flash are reported as missig drills. If either the Mi Rig value or drill layer are 0, GerbTool does ot perform the aular rig. 6 Tip You ca also use the aular rig check to verify a soldermask layer. Use the soldermask layer as the active layer; use the copper layer o which the pads are defied as the drill layer. Drill Layer Specifies the drill layer used i the aular rig check. A 0 disables aular rig checkig. Use Size Of Specifies whether the size of the drill layer flashes are take from the D-Code size or the Tool size field withi the aperture list whe performig aular rig checkig. Well Behaved The DRC commad supports two separate modes: well behaved ad ormal. I well behaved mode, GerbTool assumes that legal pad/trace or trace/trace coectios have commo X-Y locatios (see the Netlist commad i Chapter 7 for a descriptio of well behaved Gerber files). This meas that ay actual cotact betwee items that do t share a commo X-Y locatio, ad are i differet ets, is cosidered a violatio. Coversely, i ormal mode, ay actual cotact betwee items is ot cosidered a violatio. Oly items that are ot i cotact but are withi the miimum spacig rules are cosidered i violatio. Well behaved mode is preferred if your Gerber files were produced accordigly, because it provides much faster processig ad more accurate results. O Note If a valid etlist does ot already exist, GerbTool prompts you to geerate oe. While a etlist is ot a prerequisite to DRC, a etlist icreases the usefuless ad accuracy of DRC. Widow Specifies that GerbTool rus the DRC o a particular widow of data, rather tha o the complete layer. Fid Stubs Allows GerbTool to locate ad highlight all trace stubs. A trace stub is ay trace that touches a pad or trace o oly oe ed. Max Errors Sets a limit to the umber of errors DRC produces. This prevets DRC from geeratig a huge report file if you eter the icorrect spacig rules for a give desig. OrCAD Layout GerbTool User s Guide 85

94 Commad referece Do t check items i select group Tells DRC to igore all items that are i the curret select group. For example, if you have blocks of text that you wat to exclude from the check, you ca use the Add commad to create a select group with these blocks of text. DRC the igores the text, thereby producig a much cleaer report. After performig the DRC, GerbTool eables DRC error viewig ad displays the DRC View Errors dialog box as show below: DRC view errors dialog box. You ca use this dialog box to examie ad documet ay or all DRC errors foud. Next Jump forward to the ext o-fixed error. Prev Jump back to the ext o-fixed error. GoTo Jump to the curret error, fixed or ot. Prit Prit the curretly selected error o the default Widows priter. The error report icludes a scree capture of the error ad all related iformatio about the error ad items ivolved. Prit All Prits a separate error report for each error i the list. Fixed Toggles the status of a error. By settig the status to fixed you ca tell at a glace which errors have already bee corrected. Highlights Toggles the display of the curret error highlights. Use this butto to temporarily tur off highlights to allow easy correctio of the error. Use the Errors commad to toggle the display of the DRC View Errors dialog box. O Note GerbTool updates the DRC report file geerated by the last ru of the DRC commad with the fixed status of each error. Therefore, you should ot remove or substatially alter this file if you ited to view DRC errors agai usig this file. 86 OrCAD Layout GerbTool User s Guide

95 Commad referece Soma This meu selectio starts the Soma tool. The Soma tool creates a maximum material coditio at the poit of trace etry ito a pad. See Appedix C: Soma cocepts for a more techical descriptio. Soma Parameters dialog box. Eter a valid fileame i the Rep File field; GerbTool logs ay errors to this file. You must specify a layer to operate o (From Layer) as well as a output layer (To Layer) for the geerated Soma pads. O Note If you eter a zero i the From Layer field, GerbTool processes all viewed layers, with the resultat Soma pads beig added to their respective layers. You ca restrict the geeratio of Soma pads to a particular D-Code by eterig its idetifier i the D-Code field. A D-Code of zero matches all. Edit the spacig parameters to specify the desig rules to which Soma must adhere. The Host Offset field cotais the offset maitaied betwee the host pad cetroid ad the edge of the geerated Soma pad. This value may be egative. If Soma detects a spacig rule violatio while placig a Soma pad, it reduces the size of the Soma pad to avoid such errors. You ca cotrol the percetage of the host pad size. Use the Mi Percet field ad Max Percet field to cotrol the miimum ad maximum size of the geerated Soma pad, as a percetage of the host pad size. You ca also idicate whether Soma should operate o a widow of data versus a complete layer. O Note If a valid etlist does ot already exist, GerbTool prompts you to geerate oe. A etlist is required for the Soma tool to work properly. Use the Errors commad (View meu) to view potetial rule violatio errors, if ay, after ruig this commad. Teardrops OrCAD Layout GerbTool User s Guide 87

96 Commad referece The Teardrop tool creates a maximum material coditio at the poit of trace etry ito a pad, or at T juctios for traces. That is, whe you use the Teardrops commad, GerbTool adds copper at the poit i questio to esure that the coectio is maitaied. Teardrops dialog box. Report File Specifies the file to which GerbTool writes ay errors for the Teardrops commad. Layer Specifies the layer that receives the teardrops. O Note If you eter a 0 i the Layer field, GerbTool processes all viewed layers. D-Code Specifies that GerbTool add teardrops oly to those pads that use the specified D-Code. A D-Code of 0 matches all. Percet of host Specifies the relative size of the teardrop tail. GerbTool calculates this legth as a percetage of the diameter of the host pad. The value you eter ca be greater tha 100%. Pad/Trace Specifies the pad-to-trace spacig parameters for teardrops. Trace/Trace Specifies the trace-to-trace spacig parameters for teardrops. Legth Multiple Specifies the T juctio tail legth. GerbTool calculates this value i multiples of the host trace diameter. The value you eter ca be fractioal. Width Multiple Specifies the T juctio tail width. GerbTool calculates this value i multiples of the host trace diameter. The value you eter ca be fractioal. Widow Whe you select this optio, GerbTool creates teardrops for pads ad T juctios oly withi a particular widow, ot for the etire desig. 88 OrCAD Layout GerbTool User s Guide

97 Commad referece Delete Existig Teardrops Whe you select this optio, GerbTool removes existig teardrops from the desig (or widow withi the desig) before creatig the ew teardrops. O Note If a valid etlist does ot already exist, you will be prompted to geerate oe ow. A etlist is required for the Teardrop tool to work properly. All pad locatios for which GerbTool could ot geerate a Teardrop are highlighted ad their locatios are specified i the geerated report file. O Note You ca remove teardrops usig the Udo commad. Netlist The Netlist item displays the Geerate ad Save commads. Geerate The Geerate commad processes all viewed layers ad creates a sigle multilayer etlist that becomes part of the iteral database. The etlist may the be used by other GerbTool commads that require a etlist such as DRC ad Soma (Tools meu). You ca idicate whether your database is well behaved or ot. A well-behaved Gerber file is defied as a file where all items that are to be cosidered coected share a commo X-Y locatio as show below: Trace eds share the same X-Y locatio. Pad ad trace ed share the same X-Y locatio. Example of a well behaved Gerber file. OrCAD Layout GerbTool User s Guide 89

98 Commad referece The followig illustratio shows a example of a Gerber file that is NOT well behaved: Trace eds do t share commo X-Y locatios. Trace eds do t match pad X-Y locatios. Example of a Gerber file that is ot well behaved. If you determie that your Gerber files are ideed well-behaved, choose this mode whe geeratig a etlist, because there is a dramatic icrease i processig speed due to the well-behaved ature of the Gerber files. Sice so may of GerbTool s features require a etlist to perform properly, you ca save the geerated etlist withi your Gerber files for later use. If etlist savig is eabled, ad a etlist is preset, GerbTool saves it whe the layer is saved. To remove a etlist from a Gerber file, load the layer (or layers), disable etlist savig usig the Format commad (Files meu) ad the save the ecessary layers. O Note GerbTool uses the G04 commad to embed a etlist withi a Gerber file. This causes the Gerber file to icrease slightly i size. Remove etlists as described above before submittig your files to be photoplotted, due to their icreased size ad the possibility of the photoplot equipmet ot properly recogizig the G04 commad. 90 OrCAD Layout GerbTool User s Guide

99 Commad referece Save This commad geerates a ASCII etlist file cosistig of et umbers, or ames usig UserData, ad pad X-Y coordiates. This commad uses all viewed layers i geeratig the etlist file. Netlist Save dialog box. Fileame Specifies the desired output fileame. Use the Browse butto to locate the desired output file. m. Specifies the coordiate format. Reumber Sequetially Istructs GerbTool to reumber the et umbers (if eeded) to make sure that they are output i order ad with o gaps i the et umbers. Label Net Usig Provides a meas of determiig how GerbTool labels ets. If your ets have UserData assiged to them, you may choose to have your etlist labeled with the UserData istead of et umbers. O Note If a valid etlist does ot already exist, GerbTool prompts you to geerate oe. A etlist is required for this commad to work properly. OrCAD Layout GerbTool User s Guide 91

100 Commad referece Fix SilkScree This commad automatically removes silkscree data from pads. Fixup SilkScree dialog box. You specify the layer that cotais the pads (Pad Layer) ad the layer that cotais the silkscree data (SilkScree Layer), as well as a miimum spacig to be maitaied, ad fially whether you desire widow mode. GerbTool the removes lie segmets that violate the miimum spacig requiremet, as show i the followig before ad after sequece: Before ruig the Fix SilkScree commad. After ruig the Fix SilkScree commad. 92 OrCAD Layout GerbTool User s Guide

101 Commad referece Pad Removal The Pad Removal commad displays the Isolated ad Stacked commads. Isolated Selectig this commad removes ay uused pads (isolated/floatig pads) from ier layers. O Note GerbTool cosiders oly ier-type layers. Use the Edit commad (Layers meu) to chage this, if ecessary, for a particular layer. GerbTool does ot remove targets or thermal pads. You specify the layer from which to remove the pads ad whether GerbTool processes a widow or the etire layer. Stacked Selectig this commad removes ay uecessary pads that are idetical ad stacked exactly oe o top of aother o the same layer. You specify the layer from which to remove the pads ad whether GerbTool processes a widow or the etire layer. Drill The NC Drill commad displays the Drawig ad Save commads. Drawig This commad creates a drill drawig usig the Leged field associated with each D-Code i a aperture list. Create Drill Drawig dialog box. For each D-Code i the From Layer field, GerbTool adds the D-Code specified by the correspodig Leged field to the layer specified i the To Layer field. Use the Copy All optio to copy D-Codes with ivalid Legeds. If you select the Copy All optio, you ca use the Sub D-Code field to specify a particular D-Code to use as a substitute for ivalid Leged D-Codes. If Sub D-Code is 0, all D-Codes with a ivalid Leged D-Code use the origial D-Code value i the To Layer field. OrCAD Layout GerbTool User s Guide 93

102 Commad referece Save The Drill commad creates a ASCII output file cotaiig X-Y pad locatios i the selected NC format. GerbTool optimizes the output ad removes duplicate hits withi a sigle tool. Drill dialog box. This commad relies o the Tool assigmets withi the aperture list for the selected iput layer. Optimizatio is cotrolled by the Swath Width value ad by whether a X or Y sort is performed. The report file cotais a approximate distace that the drill head will travel. Therefore, by adjustig the swath width ad examiig the report file you ca achieve the fastest drillig throughput. O Note Perform image paelizatio prior to executig this commad. If you perform virtual paelizatio the output of this commad cotais step ad repeat codes. Use these codes if your drillig equipmet has limited memory capacity. Otherwise, a fully optimized o-virtual pael results i more efficiet drillig. Occasioally there may be items that you do t wat optimized, but that you wat to iclude i the same drill file, such as test coupos ad moutig holes. Place these items o a layer i the exact order that you wat them drilled. GerbTool eters these layers ito the Merge Layer Pre ad Post fields. GerbTool iserts these layers ito the drill file without optimizatio before ad after isertig the optimized iformatio from the layer specified i the Drill Layer field. This is doe o a tool by tool basis. Therefore, GerbTool outputs iformatio for tool #1 o the Pre merge layer first, the optimizes ad outputs the drill layer, followed by the tool #1 iformatio from the post merge layer. GerbTool the repeats the process for tool #2, ad so o. This also works for Virtual paels whe you wat to iclude opaelized drill data. Sort Tools By - Number or Size Idicates how GerbTool orders the tools i the output file. Pre-drill holes larger tha Idicates the maximum size for holes that will ot be pre-drilled. 94 OrCAD Layout GerbTool User s Guide

103 Commad referece Covert The Covert meu item presets a sub-meu with the Draw Pads ad Arcs commads. Draw Pads Use this commad to covert pads created with Gerber draws ito flashes. Use this commad prior to attemptig ay other editig or data extractio such as NC Drill. This commad ca sigificatly decrease the size of your database if it cotais draw pads. Draw Pad Selectio dialog box. This commad prompts you to eter a widow aroud the draw pad you wat to covert. If you select the Create D-Codes check butto, GerbTool creates ew D-Codes as ecessary to match the dimesios of the draw pads selected for coversio. If you do t select the Create D-Codes check butto, GerbTool iforms you of the calculated size of the pad as show below: New D-Code dialog box. OrCAD Layout GerbTool User s Guide 95

104 Commad referece Fid or create a correspodig flash i the aperture list for this layer. Eter the appropriate D-Code i the D-Code field ad a tolerace value, if eeded, i the Tolerace field. O Note The tolerace value allows GerbTool to icrease its match frequecy whe the CAD system that geerated the draw pads exhibits roud-off errors. Usually a value of (iches) will suffice. GerbTool locates ad highlights all occurreces of ay matchig draw pads ad prompts you whether or ot to cotiue. Arcs This commad coverts circular iterpolated circles ito segmeted circles, idividually or by widow. Use this commad if your photoplotter ca t hadle circular iterpolated arcs. 96 OrCAD Layout GerbTool User s Guide

105 Commad referece Layer Spread Use the Layer Spread commad to reduce your film costs by automatically copyig ad spreadig all viewed layers oto oe layer (ad thus oe sheet of film). Layer Spread dialog box. You ca select automatic or maual mode usig the Layer Spread dialog box as show above. If you select Auto Mode, GerbTool automatically calculates the umber or images that will fit i the film box as well as the positio of each image. I auto mode the X ad Y spacig fields specify the opposig border-to-border miimum spacig requiremets. I maual mode, you must specify the umber of rows ad colums ad the ceter to ceter spacig i the X ad Y spacig fields. I either case, you ca select either Row major or Colum major placemet. While the To Layer field may specify oe of the layers to be spread, it usually is a empty layer created to accept the properly spread out images. Whe you choose the OK butto, GerbTool prompts you to select the order i which the layers are spread. You must click o each layer to defie the proper order. After doig so, GerbTool shows the placemet of all layers for your approval. If you respod affirmatively, GerbTool copies ad spreads the layers as show. OrCAD Layout GerbTool User s Guide 97

106 Commad referece Vet/Thievig Use this commad to maually add Vet/Thievig patters to your database. GerbTool displays the Vet/Thievig dialog box, i which you ca edit the vetig parameters such as patter spacig ad aperture selectio. Vet/Thievig dialog box. You ca the defie a rectagular area by eterig two coordiate poits. After cofirmatio, GerbTool fills the specified area with a patter of flashes as specified. 98 OrCAD Layout GerbTool User s Guide

107 Chapter 8 Aperture Coversio Rule files Defiitio of a ACR file Creatig a ACR file I additio to providig the ability to covert most popular CAD ad photoplotter aperture lists directly ito the popular GerbTool format, you ca create your ow Aperture Coversio Rule (ACR) files for specialty, proprietary or otherwise usupported aperture list formats. A Aperture Coversio Rule (ACR) file is a ASCII file that describes a particular aperture list format usig coversio laguage statemets. Usig a text editor, you ca create your ow ACR file that describes the expected format of your aperture list. Oce it is read i, GerbTool ca covert your ew aperture list format automatically, just as it coverts the supported aperture list formats (see Covertig a CAD aperture list i Chapter 3: Quick start). A ACR file cotais two types of statemets. The first type describes the eviromet, such as the expected file extesio, metric mode, umber of header lies to skip, ad so o. The secod type is the actual rule statemet, which is used to match icomig aperture list etries to correspodig GerbTool aperture shapes. The followig are descriptios of the eviromet-type of ACR statemets ad their expected parameters, if ay. NAME Sytax Parameters coverter_ame Descriptio Example NAME coverter_ame The ame of the ACR file. Should be a sigle word. This statemet will place the parameter i the header of the resultig aperture list. The followig example sets the ame of the coverter to ALLEGRO.ACR. NAME allegro.acr OrCAD Layout GerbTool User s Guide 99

108 Chapter 8 Aperture Coversio Rule files VERSION Sytax VERSION versio_umber Parameters versio_umber Descriptio Example The versio umber of the ACR file. The versio umber should be a sigle decimal umber. This statemet will place the parameter i the header of the resultig aperture list. The followig example sets the versio umber of the coverter to 6. VERSION 6 HEADER Sytax HEADER lies_to_skip Parameters lies_to_skip Descriptio Example The umber of lies to skip i the header of the aperture list. If this lie is preset, the umber of lies specified will be skipped from the header of the aperture list file you are attemptig to covert. This ca be used to bypass iformatio at the top of a file that you kow does ot cotai ay apertures. The followig example istructs GerbTool to skip the first twety lies of the aperture list. HEADER 20 SKIP Sytax SKIP skip_strig Parameters skip_strig Descriptio Example A text strig to mark text to be skipped. If this lie is preset, all lies i the aperture list that start with the give character strig will be igored. The followig example will allow GerbTool to skip over lies that begi with MOIRE. SKIP MOIRE 100 OrCAD Layout GerbTool User s Guide

109 Chapter 8 Aperture Coversio Rule files DEFAULT_UNITS Sytax DEFAULT_UNITS mode Parameters mode Descriptio Example Oe of $$INCH, $$MIL, or $$MM. If give, will cause the values read i to be iterpreted as Iches, Mils, or Millimeters, depedig o the value used. The followig example sets the uits mode to metric. DEFAULT_UNITS $$MM CUSTOM Sytax CUSTOM yeso Parameters yeso Descriptio Example Either $$YES or $$NO. If set to $$YES, GerbTool will attempt to create custom aperture ames wheever possible. Otherwise a Diamod shape will be substituted. Note: GerbTool will ot create the custom apertures themselves, oly their ames i the aperture list. The followig example sets the creatio of custom apertures to off. CUSTOM $$NO EXTENSION Sytax EXTENSION extesio Parameters extesio Descriptio Example The default aperture list extesio. The default extesio of the aperture lists you will be covertig with this rule file. If the value is etered here, you will ot eed to eter it whe specifyig the aperture list for coversio. The followig example sets a default aperture list extesio of MYA. EXTENSION mya OrCAD Layout GerbTool User s Guide 101

110 Chapter 8 Aperture Coversio Rule files DEBUG Sytax DEBUG mode Parameters mode A value of 0, 1, or 2. Descriptio Eables debuggig iformatio to be output ito the aperture coverter s log file. If zero is used, o debug iformatio will be output. If 1 is used, GerbTool will output debug iformatio while parsig the ACR file, ad if the value is set to 2, debug iformatio will be output while covertig the aperture file itself. This fuctio is for advaced users ad should either ot be icluded or be set to zero for ormal coverter operatio. Example The followig example sets the curret debug mode to 2. DEBUG 2 XTENSION Sytax XTENSION dll_fileame Parameters dll_fileame Descriptio Example The ame of a.dll file that you supply. Causes the coverter to look for the specified.dll file to help i covertig the aperture lists. The example specifies a user-supplied.dll. XTENSION myapfmt.dll 102 OrCAD Layout GerbTool User s Guide

111 Chapter 8 Aperture Coversio Rule files D-CODE Sytax DCODE mode Parameters mode Descriptio Example Oe of $$ONLINE, $$SEQUENTIAL, or $$GERBER_ORDER. Cotrols how D-Code values will be derived. If set to $$ONLINE (the default) the codes read o each lie will be used. If $$SEQUENTIAL is used, lies that match the rules give will be assiged sequetial umbers. Some aperture lists have their D-Codes arraged i a special osequetial order used i certai Gerber photoplotters. Walcer will use this order if $$GERBER_ORDER is set. The example sets the D-Code mode to sequetial. DCODE $$SEQUENTIAL # Sytax # ay_text Parameters ay_text Descriptio Example The body of a commet. This symbol leads commets i a ACR file. The example shows a typical commet. # Created By A. Desiger OrCAD Layout GerbTool User s Guide 103

112 Chapter 8 Aperture Coversio Rule files The followig is a descriptio of each rule type of ACR statemet ad the expected parameters, if ay. FORMAT_shape Sytax Parameters shape rule Descriptio Example FORMAT_shape rule The possible shapes are: ROUND, SQUARE, RECT, OBLONG, DONUT, DIAMOND, OCTAGON, THERMAL, THERM45, TARGET, ad CUSTOM. Note that this parameter should be combied with the FORMAT_ statemet to form a sigle word such as FORMAT_ROUND. A rule for matchig apertures that are to be mapped to a GerbTool shape aperture. If the rule matches a lie i the aperture list beig coverted, that lie will be coverted ito a GerbTool shape aperture. The followig example will match the lie: JUNK D ROUND. FORMAT_ROUND $skip +D$dcode $xsize $ysize ROUND FORMAT_UNITS Sytax Parameters rule Descriptio Example FORMAT_UNITS rule A rule for matchig a lie i the aperture list that specifies the format of the file. A lie matchig this is used to determie the format of the aperture list. This statemet allows the aperture list itself to override a previous UNITS statemet. The followig example will match the lie: FORMAT MM. FORMAT_UNITS $skip $uits 104 OrCAD Layout GerbTool User s Guide

113 Chapter 8 Aperture Coversio Rule files FORMAT_SPECIAL Sytax Parameters rule Descriptio Example FORMAT_SPECIAL rule A rule for matchig lies for use by a XTENSION DLL. Does ot produce a GerbTool D-Code lie. It is used for special processig by a XTENSIONspecified DLL. The followig example will match the lie: SQR D FORMAT_SPECIAL SQR +D$dcode $xsize $ysize Whe costructig rules to match apertures, there are special keywords that you place i the rule that will cause GerbTool to assig the values cotaied i the fields to the correspodig GerbTool aperture list fields. These keywords are as follows: Keyword $dcode $xsize $od $ysize $id $rot $tool $skip $custom $uits Meaig Assiged to D-Code Assiged to xsize Assiged to xsize Assiged to ysize Assiged to ysize Assiged to rotatio Assiged to tool um Skip this field Use this field to make a custom aperture Used to determie the format of the aperture list OrCAD Layout GerbTool User s Guide 105

114 Chapter 8 Aperture Coversio Rule files The followig is a sample ACR file. # Aperture coverter for Metor NAME Metor VERSION 1.0 EXTENSION rpt # hadle swapped X/Y colums XTENSION metor.dll DEBUG 0 CUSTOM $$NO DEFAULT_UNITS $$INCH HEADER 1 FORMAT_ROUND $skip +circle +$skip +$xsize +$ysize +$rot +false +false +$dcode FORMAT_THERMAL $skip +circle +$skip +$xsize +$ysize +$rot +false +true +$dcode FORMAT_RECT $skip +rectagle +$skip +$xsize +$ysize +$rot +false +false +$dcode FORMAT_SPECIAL Positio +Shape # Metor ow has multiple formats FORMAT_ROUND +$skip +$dcode +circle +$skip +$xsize +$ysize FORMAT_THERMAL +$skip +$dcode +circle +$skip +power +$xsize +$ysize FORMAT_RECT +$skip +$dcode +rectagle +$skip +$xsize +$ysize FORMAT_SPECIAL Aperture Positio 106 OrCAD Layout GerbTool User s Guide

115 Chapter 9 Exteded Gerber Embedded apertures GerbTool supports the exteded Gerber data format (sometimes referred to as 274- X) developed by Gerber Systems, Ic. (GSI). This format provides for the iclusio of aperture data directly i the Gerber data files (embedded apertures), flexible aperture defiitios ad easy sigle file compositig. O Note While it ot ecessary to uderstad the sytax of exteded Gerber to maipulate exteded Gerber files withi GerbTool, several examples of this sytax are provided below. These examples are provided to acquait you with exteded Gerber oly. See the istructio mauals provided with your photoplotter, or cotact GSI directly, for more iformatio o the exteded Gerber sytax. A exteded Gerber file cotais all aperture defiitios ecessary to plot the data, thereby elimiatig the eed for a exteral aperture list. A aperture is defied withi a exteded Gerber file with a AD commad as follows: %ADD<code><macro_ame>,<parameter_list>*% For example: %ADD10C,0.06X0.020% This example defies D10 as a simple 60-mils roud flash usig the GSI itrisic aperture macro C. GerbTool allows you to edit aperture defiitios usig the Edit AD butto withi the Edit dialog box. See Chapter 7: Commad referece for more iformatio. OrCAD Layout GerbTool User s Guide 107

116 Chapter 9 Exteded Gerber Aperture macros Aperture macros describe the size ad shape of special apertures. Usig aperture macro primitives, you ca desig complex aperture shapes. Each primitive describes a basic shape such as a circle or a lie. Each primitive also specifies its polarity (o/off) allowig data to be removed for such features as douts or spokes i a thermal. Show below are the differet primitives available. Number Type Parameters 1 Circle o/off diameter xceter yceter 20 Lie-Vector o/off width xbeg ybeg xed xed rot 21 Lie-Ceter o/off width height xceter yceter rot 22 Lie-Lower left o/off width height xloc yloc rot 4 Outlie o/off cout x y... rotatio 5 Polygo o/off sides xceter yceter diameter rot Exteded Gerber aperture macro primitives. Aperture macros are also programmable usig replaceable parameters, which allow a macro to produce differet results, depedig o the aperture defiitio specified by the AD aperture defiitio commad (explaied i the precedig sectio). Replaceable parameters are idicated by a dollar sig ($) followed by a umeric value. The umeric value idicates the parameter s positio withi the AD aperture defiitio. A typical dout macro ad correspodig defiitios are show below. %AMDONUT* 1,1,$1,0.0,0.0* 1,0,$2,0.0,0.0* % %ADD10DONUT,0.60X0.40% %ADD20DONUT,0.08X0.70% I the above example, D10 is defied as a 60-mils dout with a 40-mils hole, ad D20 is defied as a 80-mils dout with a 70-mils hole. Note that both D10 ad D20 refer to the same macro but have differet sizes. GerbTool allows you to edit aperture macros usig the Edit AM butto withi the Apertures/Edit dialog box. See Chapter 7: Commad referece for more iformatio. 108 OrCAD Layout GerbTool User s Guide

117 Chapter 9 Exteded Gerber Layer compositig Viewig composites With exteded Gerber, a sigle Gerber file defies a composite image of arbitrary complexity. Each layer of data withi the Gerber file is prefixed with a appropriate polarity commad. Orderig of the layers is critical as the data is processed sequetially. For assistace, check the example files provided ad otice how each layer either adds or removes from the iitial image. GerbTool automatically creates separate layers for composite layers whe readig a exteded Gerber file ad coversely creates a sigle file for all layers that form a composite whe writig out data. Composite layers ca be displayed with the V shortcut key. This ested commad toggles composite viewig o or off. Whe eabled, GerbTool displays composite layers as they are plotted. Whe disabled, GerbTool displays composite layers as if all layers were dark (positive). You ca also cotrol composite viewig usig the Edit dialog box. Covertig from RS-274-D to exteded Gerber format I order to covert a set of stadard Gerber 274-D files ito a sigle exteded Gerber composite file, load the 274-D files as you ormally do ad the perform the followig steps usig the Edit commad (Layers meu): Set the Layer Name field of each layer to a meaigful ame. 6 Tip Settig the Layer Name field to the origial fileame of the same layer will label the exteded Gerber layers i a fashio that will be familiar to the user. Decide o the fileame you wat to use for the ew exteded Gerber file ad reame all of the Gerber fileames to this ew ame. It is importat that each exteded Gerber layer have the same fileame. Set the Layer Type for each of these layers to Composite. Assig a polarity ad a commo umber to the Key field for each of the exteded Gerber layers. For example, D1 for Dark composite umber 1 or C1 for Clear composite umber 1. A polarity of Dark meas that the layer is to be displayed i the style a ormal Gerber file is displayed. Clear tells GerbTool to display the layer usig the curret backgroud color. This erases, or clears, areas from a image that were previously draw by a dark layer. Set egative layers to clear. O Note The commo umber portio of the Key field allows GerbTool to load multiple exteded Gerber composite files at the same time. Each set of layers withi a exteded Gerber file should have a commo umber assiged to the Key field. OrCAD Layout GerbTool User s Guide 109

118 Chapter 9 Exteded Gerber Click o the Edit butto withi the File Format group box. Chage the Dialect field to exteded Gerber (274-X). Save the composite file usig the Save commad (File meu). All the layers are writte ito a sigle exteded Gerber file with the ame that you specified, alog with a embedded aperture list. To load this ew exteded Gerber composite file ito aother desig, eter its fileame ito the Fileame field as you would with ay other Gerber file, makig sure the file format has bee set to exteded Gerber (274-X). There is o eed to load i a aperture list, because it is already icluded i the file. 110 OrCAD Layout GerbTool User s Guide

119 Chapter 10 Usig custom apertures Create a custom aperture Usig GerbTool, you ca create custom apertures. A custom aperture is othig more tha a Gerber file, ad ca therefore be of virtually ay size or shape. This chapter details the steps for creatig a custom aperture. Usig the Format commad (Files meu), set the Gerber format to Ich, absolute, 2.3 ad o zero suppressio. Select the Load commad (Files meu). Eter the appropriate desig fileame. 6 Tip Use oe desig file for all of your custom apertures. I the Layers dialog box, eter a descriptive ame i the Fileame field, such as FIDUCIAL.CUS (the.cus extesio is madatory). Eter the fileame of the aperture list that you will be usig for this custom aperture i the Aperture List field. Choose the OK butto. GerbTool will iform you that the specified Gerber file does t exist. Respod affirmatively to create the ew layer. At this poit you ca create your custom aperture usig ay of the apertures defied i the aperture list assiged to the ew layer. O Note Before you save your custom aperture, esure that the origi is where you wat it. You ca use the Origi commad (Edit meu) to relocate the origi. To use the ew custom aperture, eter its fileame (without a extesio) i the Shape field of a aperture list usig the Edit commad (Apertures meu). M Cautio The aperture list used while desigig your custom aperture must be specified i the Custom Ap List field withi the Defaults dialog box. Use the Defaults commad (Optios meu) to chage this field, if ecessary. A aperture list used for custom apertures should ot itself cotai ay custom apertures. 6 Tip For best results, you should set aside oe aperture list dedicated to all your custom apertures. OrCAD Layout GerbTool User s Guide 111

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121 Chapter 11 Workig with text fots GerbTool uses a fot file cotaiig a list of X-Y coordiate pairs that costitute the strokes required to display each character iserted by the Text commad (Edit meu). You ca have more tha oe fot file but GerbTool will always read the STROKE.FNT file at startup. To use a differet fot file, reame STROKE.FNT to some other ame, the reame your fot file to STROKE.FNT. GerbTool allows you to edit existig fots ad create ew fots that are used for text isertio. This chapter details the steps for editig fots. Editig a fot Before you edit a fot you must covert it ito idividual Gerber files for each character. To do this, from the system prompt chage to the GerbTool fots directory ad type the followig commad, the press the ENTER key: f2g../stroke.ft This will create a idividual Gerber file for each character i the fot file. You ca ow start GerbTool ad load oe of the provided desig files UPCASE.GTD, LWCASE.GTD, NUMBERS.GTD, PUNC1.GTD, or PUNC2.GTD, which cover uppercase, lowercase, umbers, ad puctuatio characters respectively. The Film Box is set to a 7-mils square, i which each character must remai. You ca draw ay shape you wat as log as you stay i or o the film box ad you do t try to add flashes. O Note It is importat that the file format of the idividual Gerber files for each character remai at Ich, absolute, 2.3, ad o zero suppressio. Oce you have fiished editig the characters, you ca use the followig commad at the system prompt to create a ew fot file, the press the ENTER key. g2f ewfile.ft I the above example, a ew fot file would be created with a fileame of NEWFILE.FNT. Note that this program does ot purge the idividual Gerber character files. You may do this maually if you wat. Remember that GerbTool will ot recogize your ew fot file uless it is amed STROKE.FNT ad is i the GerbTool PROGRAM folder. OrCAD Layout GerbTool User s Guide 113

122 Chapter 11 Workig with text fots Creatig a ew fot To create a completely ew fot you ca follow the steps detailed i Editig a fot above, but skip the fot file to Gerber file coversio step. O Note It is usually easier (ad faster) to modify a existig fot tha to create oe from scratch. 114 OrCAD Layout GerbTool User s Guide

123 Appedix A Commad ID values The tables i this appedix cotai the commad ID values associated with each GerbTool commad. You ca use these values to program your mouse ad fuctio keys. Commad Compact (Apertures meu) Covert (Apertures meu) Edit (Apertures meu) Load (Apertures meu) Merge (Apertures meu) Report (Apertures meu) Save (Apertures meu) Uload (Apertures meu) Arc 3 Pt (Add item, Edit meu) Arc Ctr (Add item, Edit meu) Circle (Add item, Edit meu) Draw (Add item, Edit meu) Flash (Add item, Edit meu) Polygo (Add item, Edit meu) Rectagle (Add item, Edit meu) Text (Add item, Edit meu) Vertex (Add item, Edit meu) Alig (Edit meu) ID AO AV AE AL AM AR AS AU EAA3 EAAC EAC EAD EAF EAP EAR EAT EAV EA OrCAD Layout GerbTool User s Guide 115

124 Appedix A Commad ID values Clip (Edit meu) EK Commad ID values (page 1 of 5). Commad Copy (Edit meu) Expad (D-Code item, Edit meu) Polarity (D-Code item, Edit meu) Scale (D-Code item, Edit meu) Trascode (D-Code item, Edit meu) Erase (Edit meu) Item (Edit meu) Mirror (Edit meu) Move (Edit meu) Origi (Edit meu) Purge (Edit meu) Rotate (Edit meu) Add (Select item, Edit meu) Ivert (Select item, Edit meu) New (Select item, Edit meu) Off (Select item, Edit meu) Remove (Select item, Edit meu) Udo (Edit meu) Chgdir (File meu) Close (File meu) Exit (File meu) BARCO DPF (Export item, File meu) IPC-D-350 (Export item, File meu) IPC-D-356 (Export item, File meu) Drill (Format item, File meu) Gerber (Format item, File meu) Load (Format item, File meu) ID EC EDE EDP EDS EDT EE ET EI EM EO EP ER ESA EPI ESN ESO ESR EU FD FC FQ FEB FE350 FE356 FFD FFG FL 116 OrCAD Layout GerbTool User s Guide

125 Appedix A Commad ID values BARCO DPF (Import item, File meu) FIB Commad ID values (page 2 of 5). Commad Drill (Import item, File meu) HPGL (Import item, File meu) IPC-D-356 (Import item, File meu) Desig (Merge item, File meu) Gerber (Merge item, File meu) Auto (New item, File meu) Maual (New item, File meu) Ope (File meu) HPGL (Plot item, File meu) PostScript (Plot item, File meu) Prit (File meu) Save (File meu) Colors (Layers meu) Edit (Layers meu) Arcs 360 (Optios meu) Bg Color (Optios meu) Defaults (Optios meu) Filmbox (Optios meu) Grid (Optios meu) KeyCmds (Optios meu) Metric (Optios meu) Ortho (Optios meu) Overlay (Optios meu) Save (Optios meu) Show Errs (Optios meu) Sketch (Optios meu) Udo (Optios meu) ID FIN FIH FI356 FMD FMG FNA FNM FO FPH FPP FP FS LC LE OA OB OD OF OG OK OM OR OO OV OE OS OU OrCAD Layout GerbTool User s Guide 117

126 Appedix A Commad ID values Copper (Query meu) QC Commad ID values (page 3 of 5). Commad Extets (Query meu) Dcode (Highlight item, Query meu) Net (Highlight item, Query meu) Off (Highlight item, Query meu) Item (Query meu) Edge to Edge (Measure item, Query meu) Poit to Poit (Measure item, Query meu) Circles (Covert item, Tools meu) Pads (Covert item, Tools meu) DRC (Tools meu) Fix SS (Tools meu) Lyr Spread (Tools meu) Load (Macro item, Tools meu) Ru (Macro item, Tools meu) Drawig (NC Drill item, Tools meu) Write (NC Drill item, Tools meu) Geerate (Netlist item, Tools meu) Write (Netlist item, Tools meu) Isolated (Pad Removal item, Tools meu) Stacked (Pad Removal item, Tools meu) Paelize (Tools meu) Soma (Tools meu) Vet (Tools meu) All (View meu) Errors (View meu) Filmbox (View meu) Pa (View meu) ID QE QHD QHN QHO QI QME QMP TCA TCP TD TF TL TML TMR TNDD TNDW TNLG TNLW TPI TPS TP TS TV VA VE VF VP 118 OrCAD Layout GerbTool User s Guide

127 Appedix A Commad ID values Previous (View meu) VV Commad ID values (page 4 of 5). Commad Recall (View meu) Redraw (View meu) Save (View meu) Widow (View meu) Zoom I (View meu) Zoom Out (View meu) ID VC VR VS VW VI VO Commad ID values (page 5 of 5). Commad All (View meu) Film Box (View meu) Pa (View meu) Previous (View meu) Redraw (View meu) Widow (View meu) Zoom I (View meu) Zoom Out (View meu) ID VA VF VP VV VR VW VI VO Commad ID values assigable to mouse buttos. OrCAD Layout GerbTool User s Guide 119

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129 Appedix B Aperture list file format This appedix describes the format of a GerbTool aperture list ad provides a example of a aperture list. Aperture lists are stored as simple ASCII files. There are ie fields i each lie of the file. Each lie defies oe D-Code. The fields cosist of the followig: Field Possible values D-Code Shape Roud, Square, Rectagle, Oblog, Dout, Diamod, Octago, Thermal, Therm45, Target, Complex, or a fileame prefixed by a % Width Height Whe referrig to Douts or Thermals, this field represets the diameter of the ier hole. Whe referrig to Targets, it refers to the diameter of the ier rig of the Target. Type SM (surface-mout) or TH (through-hole) Tool Specifies the Tool used to drill this D-Code. Tool Size Specifies the size of the above Tool umber. Leged Specifies the D-Code to use i place of this D-Code whe creatig a Drill Drawig usig the Drawig commad from the Tools>Drill meu. OrCAD Layout GerbTool User s Guide 121

130 Appedix B Aperture list file format R Specifies the D-Code to substitute for this D-Code whe rotatig 90 or 270 degrees. This field exists oly for compatibility with older versios of GerbTool, as ewer versios perform the D-Code substitutios automatically. Aperture list field defiitios. 122 OrCAD Layout GerbTool User s Guide

131 Appedix B Aperture list file format All fields are separated by white space. Lies that begi with a # are treated as commets. Although the author ad data commets are ot required, they are geerally icluded as a aid for other users. The header of a GerbTool aperture list may cotai a format lie preceded by a %. This lie cotais either IMPERIAL or METRIC followed by a versio umber. If IMPERIAL is specified, all sizes are i iches. If METRIC is specified, they are i millimeters. If o format lie is provided, IMPERIAL is assumed. The versio umber is for documetatio purposes oly. A excerpt from a aperture list showig the required format follows. # Format, Versio %IMPERIAL, V3.0 # # Author: GerbTool V1.0 (c) 1992 WISE Software Solutios, Ic. # Date: Wed Oct 7 13:28: # # Shape Width Height Type Tool Size Leged R90 # D12 Roud TH D21 Square TH D22 Rectagle SM D23 Oblog TH D24 Diamod TH D25 Target TH D26 %FIDUCIAL TH D70 Octago TH D71 Thermal TH Sample aperture list file. I the above example, D26 is specified as a Custom aperture with a fileame of FIDUCIAL.CUS. The % is required, to otify GerbTool that what follows is a custom aperture fileame. OrCAD Layout GerbTool User s Guide 123

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133 Appedix C Soma cocepts Soma creates a maximum material coditio at the poit where a trace segmet eters a pad, thereby elimiatig the possibility of pad/trace separatio (breakout). This is accomplished by examiig a Gerber file (layer) ad outputtig pad flashes at the correct locatios, ad of the correct size, to provide the most material where a trace eters a pad. Automatic adjustmets are made to the size ad locatio of the geerated Soma pads to elimiate desig rule spacig violatios. The followig illustratio shows the origial pad ad trace, as well as the resultat Soma pad. Host Pad Soma Pad Host Offset Trace Soma cocept. The distace maitaied betwee the host pad ceter ad the edge of the geerated Soma pad (see Host Offset i illustratio above) is adjustable. Negative values allow the Soma pads to closely hug the host pads. OrCAD Layout GerbTool User s Guide 125