Opportunities. Clearly Expanding Design. 3M Transparent Conductors

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1 3M Transparent Conductors Clearly Expanding Design Opportunities. 3M Patterned Transparent Conductors offer exciting performance for touchscreen applications From smartphones to tablet computers, the demand for new, ever more-advanced touch applications is being driven by an information- and entertainment-hungry market. To stay competitive, today s touchscreen devices require state-of-the-art capabilities and sleek design. 3M Patterned Transparent Conductors are a patternable, transparent conductive film with sheet resistance orders of magnitude lower than current ITO products on a flexible polyester substrate that supports these increasingly demanding design requirements. Highly flexible polyester substrate enables curved and narrow bezel sensor designs, supporting a variety of applications with increased available display area Combines excellent optical performance with support for state-of-the-art multi-touch capabilities (detect and resolve >2 touches) Delivers outstanding EMI shielding for high performance applications 3M is ready to work with you to integrate our Patterned Transparent Conductors into your designs and help enable the technical success of your electronic device.

2 3M PATTERNED Transparent Conductors Unique Adaptability and Superior Performance In specifying transparent conductors, there is often a tradeoff required between optical and electronic performance. 3M Patterned Transparent Conductors utilize a highly controllable patterning process to optimize this tradeoff and deliver high performance in both touch sensors and EMI applications. Comparing Example of Screen Printed Interconnect Structure with 3M Patterned Transparent Conductor Screen Printed Interconnect Structure 3M Patterned Transparent Conductor 1.4mm 4 traces 200µm traces 200µm spaces 0.25mm 8 traces 23µm traces 10µm spaces Physical Properties and Performance Characteristics for 3M Patterned Transparent Conductors vs. ITO Sheet Resistance Typical Transmission Haze Color Neutrality (b value) Support of curved or flexible displays Additional interconnect patterning step required Typical Total Interconnect Width 3M Patterned Transparent Film on PET 18 ohm/sq 89.4% 1.5% 1.25* Yes No.25 mm ITO on PET 300 ohm/sq 87% 1.3% (est) 3.2 No Yes.5 mm *Listed value is for transmission, reflection value is.77 3M Patterned Transparent Conductors offer an array of additional solutions for current and next-generation touch and EMI shielding applications. For more information or to request samples: Call Visit Important Notice: Before using this product, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability associated with such use. Warranty; Limited Remedy; Limited Liability: 3M s product warranty is stated in its Product Literature available upon request. 3M MAKES NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. If this product is defective within the warranty period stated above, your exclusive remedy shall be, at 3M s option, to replace or repair the 3M product or refund the purchase price of the 3M product. Except where prohibited by law, 3M will not be liable for any loss or damage arising from this 3M product, whether direct, indirect, special, incidental or consequential regardless of the legal theory asserted. Electronics Markets Materials Division 3M Center, Building 225-3S-06 St. Paul, MN Please recycle. Printed in USA. 3M All rights reserved. Issued: 12/ HB M is a trademark of 3M Company.

3 Graphic Protection Options Overlaminates and Clears for All Imaging Methods Product Bulletin GP-1 Release B, Effective January 2009 See Bulletin Change Summary on last page. Products Standard Overlaminates High Gloss This Bulletin provides an overview of all 3M graphic protection options. All product-specific information for Standard Overlaminates is included in this Bulletin. For complete details on all other products mentioned, refer to their individual Product Bulletins. Before selecting any graphic protection, refer to the applicable 3M base film or substrate Product Bulletin for compatibility, durability or expected performance life. Approved for digitally imaged or unprinted film only, except where noted by a *, which indicates it also can be used on screen printed and/or cut graphics. 3M Scotchcal High Gloss Overlaminate 639 3M Scotchcal High Gloss Overlaminate Film 3648* 3M Scotchcal High Gloss Graffiti-Resistant Overlaminate M Interior High Gloss Overlaminate 8930 Gloss 3M Scotchcal Gloss Overlaminate 3640GPS* 3M Scotchcal Gloss Overlaminate M Scotchcal Gloss Overlaminate M Scotchcal Optically Clear Overlaminate 8914* Luster 3M Scotchcal Luster Overlaminate 3619* 3M Scotchcal Luster Overlaminate 3645* 3M Scotchcal Luster Overlaminate M Scotchcal Luster Overlaminate M Scotchcal Luster Overlaminate M Scotchcal Luster Overlaminate 8908 Matte & Ultra-Matte 3M Scotchcal Matte Overlaminate 3620* 3M Scotchcal Matte Overlaminate 3642GPS* 3M Scotchcal Matte Overlaminate 3647* 3M Scotchcal Matte Overlaminate M Scotchcal Matte Overlaminate M Scotchcal Ultra-Matte Overlaminate M Interior Matte Overlaminate 8931 Specialty Overlaminates Scotchgard Graphic and Surface Protection Film 8991 Scotchgard Removable Graphic and Surface Protection Film 8991R Standard Clears Gloss Approved for most types of graphics, regardless of imaging platform 3M Screen Print Dirt Resistant Gloss Clear 1920DR 3M Screen Print Dirt Resistant Gloss Clear 2920DR 3M Scotchlite Screen Printing Gloss Clear 4430R 3M Screen Print Gloss Clear 9720UV 3M Screen Print Gloss Clear 9720i 3M Screen Print UV Gloss Clear 9800CL 3M Screen Print Clear VI0402 Matte 3M Screen Print Matte Clear M Screen Print Low Gloss Clear 9730UV Specialty Clears 3M Screen Print High Luster Protective Clear 8920 ES 3M Piezo Inkjet Protective Clear 8530 Product Bulletin GP-1-1

4 Product Applications, Descriptions and Limitations of Use Product Number Applications Description Limitations of Use Fleet/Vehicle Vehicle Wraps Watercraft Standard Overlaminates Transit Labels Signage - Backlit Signage - Backlit or Thermoformed Signage - Non-backlit Awning Banner 639 Graffiti-resistant Flat only 3619 Smooth Walls Textured Walls and Surfaces Windows and Glass Floor or Sidewalk Flexible, conformable, more durable 3620 Matte version of 3619 All Products: Not for automotive OEM graphics. Not for graphics subjected to gasoline vapors, spills, such as gas pumps, automobile fuel tank ports, or top-feeding petroleum tankers Do not print on graphic protection For piezo inkjet printed signs only Slip- and scuff-resistant for floor and table graphics, some vertical graphics Use for sidewalk signs for slip-, scuff- and foot traffic-resistance For slip-, scuff- and foot traffic-resistance for floor graphics Digitally-imaged promotional graphics Unrivaled conformability and lifting resistance Highly conformable, provides wet paint look; resists fuel vapors Flexible and conformable; resists fuel vapors Indoors only No exposure to vehicle traffic, snowplows, snow shovels, heavy equipment Indoor applications, except certain vehicle usage Not for warranted graphics Vehicle wraps only For Performance Guarantee graphics only 8520 Matte version of Use with film IJ8624 for textured surfaces; conformable with heat Use with film 8624 of IJ8624 only 8908 Ideal for application to film 3545C; specialty graphics 8909 Matte version of Flexible, graffiti-resistant 8914 Optically clear for window graphics, conformable No application to outdoor banner materials, vinyl film applied to fleet, truck or vehicle graphics, reflective graphic film No heat applied to premasked graphics Dry erase marker graffiti does not remove well Not for plastics, glass or flexible substrates Not for piezo inkjet printed graphics Use on 3M's perforated window films only Ultra-matte finish reduces glare High strength acrlyic adhesive High strength acrlyic adhesive For electrostatic, Interior, flat only For electrostatic, Interior, flat only Product Bulletin GP-1-2

5 Product Number Applications Description Limitations of Use Fleet/Vehicle Vehicle Wraps Watercraft Specialty Overlaminates Transit Labels Signage - Backlit Signage - Backlit or Thermoformed Signage - Non-backlit Awning 3640GPS Banner Smooth Walls Textured Walls and Surfaces Windows and Glass Floor Highest protection from UV fading, dirt, graffiti, easy clean; thermoformable on plastic substrates 3642GPS Matte version of 3640GPS All Products: Not for automotive OEM graphics. Not for graphics subjected to gasoline vapors, spills, such as gas pumps, automobile fuel tank ports, or top-feeding petroleum tankers Do not print on graphic protection Not for application to other 3M brand GPS films or Panagraphics III substrate or for graphics subjected to intentional or accidental abrasion 8991 Superior substrate and surface protection from stains, abrasion, gouges, UV light, graffiti; easy to clean 8991R Removable version of 8991 Standard Clears - Screen Printed or Roller Coated Liquid Clear 1920DR Gloss, with dirt resistance; Good choice for frequently washed vehicles Not for cut film applications, flexible substrates, gypsum wallboard, poor paint adhesion, graphics printed with solvent based inks, porous or unsealed surfaces. Not for vandalism or excessive product misuse that damages the substrate Not for gasoline vapors and spills that penetrate the edges of the film. Same as above, plus Not removable from printed or unprinted graphic film 1930 Matte VI0402 Gloss, gasoline resistance 2920DR Gloss with dirt resistance 4430R Matte Use on reflective films only with ink series 2900 Use on reflective films only with ink series i UV-cured gloss; Suitable for petroleum environments if staining is not a concern. 9720UV UV-cured, gloss 9730UV UV-Cured, matte 9800CL Specialty Clears UV-cured, gloss. Suitable for petroleum environments if staining is not a concern. Screen printed or roller coated on electrostatically imaged graphics, economical alternative to outdoor overlaminates Water-based clear, high luster gloss for piezo inkjet printed graphics; apply with liquid laminator Use with ink series 9800 only. Not for graphics made of multiple layers of ink and clear that must be stretched during installation. No exposure to gasoline spills, splashing, harsh cleaning chemicals or solvents Not for full bus wraps. No exposure to Isopropyl alcohol or harsh cleaning chemicals or solvents Product Bulletin GP-1-3

6 Application Surfaces, Physical and Performance Characteristics Number Application Surfaces Physical Characteristics Performance Characteristics See Conversion Values, page 7. Flat Flat with rivets Corrugated Standard Overlaminates Simple Curves Compound Curves Deep Channels & Concave Surfaces Flexible Substrates Film Material Cast or Non-Cast Film Thickness (mil) Face Finish (Gloss, High Gloss, Luster, Matte Liner Lamination Temperature A F B F C F In Use Temperature Range D F E F 639 Polyester 1 HG Kraft paper A D 3619 Vinyl Cast 2 L Kraft paper A D 3620 Vinyl Cast 2 M Kraft paper A D 3645 Vinyl Cast 8 L Kraft paper A D 3647 Vinyl Cast 19 M Kraft paper A D 3648 Vinyl Cast 6 HG Kraft paper A D 8509 Vinyl Non-Cast 3 L Kraft paper A D 8580 Vinyl Cast (new technology) 1 G Kraft paper A D 8518 Vinyl Cast 2 G Polyester A D 8519 Vinyl Cast 2 L Kraft paper A D 8520 Vinyl Cast 2 M Kraft paper A D 8524 Plastic n/a 2 L Kraft paper A D 8908 Polyolefin Non-Cast 2.5 L Kraft paper B E 8909 Polyolefin Non-Cast 2.5 M Kraft paper B E 8912 Polyester 1 HG Kraft paper C D 8914 Vinyl Cast 1 G Polyester A D 8915 Vinyl Cast 2 M Kraft paper C D 8930 Polyester Non-Cast 2 M Kraft paper B E 8931 Polyester Non-Cast 4 M Kraft paper B E Specialty Overlaminates 3640GPS PVDF n/a 1 G Kraft paper C D 3642GPS PVDF n/a 1 M Kraft paper C D 8991 Polyester n/a 4 HG Polyester C D 8991R Polyester n/a 4 HG Kraft Paper C D Clear Coats Number Application Surfaces Physical Characteristics Flat Flat with rivets Corrugated Simple Curves Compound Curves Deep Channels & Concave Surfaces Flexible Substrates Face Finish High Gloss, Gloss, Luster, Matte, Ultra Matte Recommended Solvent or UV Coating Thickness 8920 HL Solvent 3 to 6 microns feet HL Water base 6 to 20 microns 800 feet DR L Solvent 6 microns minimum 2500 feet M Solvent 6 microns minimum 2500 feet 2 VI0402 L Solvent 6 microns minimum feet DR L Solvent 6 microns feet R L Solvent 6 microns feet i L UV 6 to 12 microns feet UV L UV 6 to 12 microns feet UV M UV 6 to 12 microns feet CL L UV microns feet 2 Typical Coverage per U.S. gallon See Conversion Values, page 7. Product Bulletin GP-1-4

7 Product Flammability 3645 Average Critical Radiant Flux (W/cm): Overlaminate 3645 laminated to film series 162 has been tested to ASTM E 648, Standard Test Method for Critical Radiant Flux of Floor-Covering Systems Using a Radiant Heat Energy Source." The results show that the composite meets the requirement of the National Fire Protection Association, Class I Interior Floor Finish as defined in NFPA 101, Life Safety Code." Chemical Resistance All Resists mild alkalis, mild acids and salt Excellent resistance to water Resists petroleum vapors 8991, 8991R See Product Bulletin 8991 for complete details on the unique uses and application methods for this product. Skid Resistance 3647 Overlaminate 3647 has been tested per ASTM E303, Standard Test Method for Measuring Frictional Properties Using the British Pendulum Tester", and meets the requirements of the skid resistance values, or British Pendulum Number (BPN), as set forth in the proposed European norms pren1341 and pren1342 for pedestrian surfaces. Dry Surface: BPN = 95; Wet Surface: BPN = 40. Warranty Information Important Note for all Piezo Inkjet Printed Graphics! Adequately Dry Graphics How to Apply an Overlaminate All All Piezo Inkjet Graphics All All graphic protection options are covered by the 3M Basic Warranty. A warranted durability period may be offered based on the graphic construction. Always refer to the Product Bulletin for the 3M base film or flexible substrate you are using to determine if the graphic protection option you want to use is recommended and what, if any, warranted durability period is offered. The only exception is for Scotchgard Graphic and Surface Protection Film 8991 and 8991R, which have warranted durability periods in Product Bulletin Inadequate drying can result in graphic failure including curling, increased shrinkage and adhesion failure, which are not covered under warranty. Always build enough time into your process to ensure adequate drying of the graphic. Poorly dried film may become soft and stretchy, and the adhesive may become too aggressive. This can cause difficulty when applying an overlaminate, rolling the graphic, and applying the film. See the ink's Instruction Bulletin for more details. Except where noted, the overlaminates in this Bulletin must be applied with the cold roll methods. This is also referred to as squeeze roll or power drive roll. Some products have Unique Usage Details as described in the following section. Refer to 3M Instruction Bulletin 4.22 for cold roll lamination procedures. Unique Usage Details 3640GPS 3642GPS Overlaminates 3640GPS or 3642GPS can be applied with a hand or power drive roll laminator. Do not use this on 3M Panagraphics III Wide Width Flexible Substrate or 3M Scotchcal Translucent Graphic Film Series 3632GPS. These overlaminates are commonly applied using the wet (detergent and water) application method. See Instruction Bulletin 5.7 for details. Floor graphics protected with overlaminate 3645 or 3648 can be scrubbed, cleaned and waxed during routine maintenance of the floor. See Instruction Bulletin Use for 3M sidewalk signs. Cut radiuses on any sharp corners to help prevent premature lifting of the graphic after application. Cut by hand, guillotine and cold steel rule die. Clean the graphics periodically for optimum skid resistance and appearance. See Instruction Bulletin Product Bulletin GP-1-5

8 Unique Usage Details, continued Product 8524 Overlaminate 8524 is designed for use only with 3M Scotchcal Graphic Film IJ8624 or 8624 for Textured Surfaces. When applying the overlaminate, use the minimum amount of pressure needed and unwind tension to obtain good results. This helps reduce the chance of the overlaminate tunneling as it is applied to the base film. If tunneling does occur, it will disappear when the graphic is applied with heat and pressure to a textured surface. Keep the finished graphic flat and racked, if possible. If rolling is required, use the largest roll available (at least 6 inch/15 cm diameter) Apply these polyolefin overlaminates at room temperature. Both heat and tension can cause the overlaminate to curl. Do not use this overlaminate on films that must be stretched during application. Excessive stretching causes the overlaminate to appear white. Cut by hand or cold or hot steel rule die Use this overlaminate for perforated window graphics. It provides optically-clear graphic protection and prevents moisture and contaminants from collecting in the base film's perforations. Maintenance and Cleaning All Use a cleaner such as the kind used for high-quality painted surfaces. The cleaner must be wet, non-abrasive, without strong solvents or alcohol, and have a ph value between 3.0 and 11.0 (neither strongly acidic nor strongly alkaline). Application Tape All Application tape may be used to add stiffness to a graphic for easier application, hold cut graphics together while applying, or to protect graphics from scratching and other damage during application. However, many graphics with an overlaminate do not require an application tape. Refer to the Product Bulletin for the base film or flexible substrate you are using for additional recommendations on the use of application tape. The following information does not cover all construction options Overlaminates 3645 and 3648, when used as recommended, do not require a premasking or prespacing tape for application Overlaminate 3647 does not generally require an application tape. For die cut, prespaced graphics, 3M Prespacing Tape SCPS 53-X may be used Do not use application tape for any graphics made with overlaminate Overlaminates 8908 and 8909 generally do not need an application tape, although 3M Premasking Tape SCPM-3 may be used. When winding processed graphics, do not wind too tightly or the film may block. Do not apply heat to the graphic until the premasking tape is removed and then heat only enough to soften the film; too much heat will cause the overlaminate to lose gloss. Excessive heat will cause the overlaminate to curl. Product Bulletin GP-1-6

9 Shelf Life, Storage and Shipping Shelf Life Most Total shelf life: 2 years from the date on the original box Up to 2 years unprocessed, OR process within 1 year and apply within 1 year of processing Storage Temperature Total shelf life: 1 year from the date on the original box 40 to 100 F (4 to 38 C) 40 to 86 F (4 to 30 C) Storage Conditions All Out of sunlight Clean dry area Original container Bring the film to print room temperature before using Shipping Finished Graphics Conversion Values For tables on page 4 Health and Safety All Others Flat, or rolled printed-side-out on the largest core available (at least 6 inches/15 mm diameter). All graphics with reflective base films must use this large a core. Flat, or rolled printed-side-out on 5 inch (13 cm) or larger core. This helps prevent the liner and, if used, the application tape from popping off. Temperature F C) F (10-32 C) F (15-38 C) F ( C F ( C) Length feet 2 (25-29 m 2 ) 800 feet 2 (19 m 2 ) 2500 feet 2 (59 m 2 ) 2500 feet 2 (59 m 2 ) feet 2 (59-83 m 2 ) feet 2 (30-45 m 2 ) feet 2 ( m 2 ) feet 2 (59-73 m 2 ) feet 2 (59-73 m 2 ) feet 2 (59-73 m 2 ) feet 2 (59-83 m 2 ) CAUTION When handling any chemical products, read the manufacturers' container labels and the Material Safety Data Sheets (MSDS) for important health, safety and environmental information. To obtain MSDS sheets for 3M products go to 3M.com/MSDS, or by mail or in case of an emergency, call or When using any equipment, always follow the manufacturers' instructions for safe operation. Product Bulletin GP-1-7

10 Air Quality Regulations 3M Related Literature State Volatile Organic Compound (VOC) regulations may prohibit the use of certain cleaning chemicals with VOC's in graphic arts coatings and printing operations. For example, the California South Coast Air Quality Management District prohibits use of certain solvent-based solutions without a permit and other California AQMD's prohibit use of certain solutions without a permit or a regulatory exemption. Check with your State environmental authorities to determine whether use of this solution may be restricted or prohibited. Before starting any job, be sure you have the most current Product and Instruction Bulletins. The information in 3M Product and Instruction Bulletins is subject to change. Current Bulletins are available at 3Mgraphics.com. The techniques described in these Bulletins are required when applying a 3M warranted graphic, but are also practical recommendations when using promotional materials for non-warranted graphics. Additional Bulletins may be needed as indicated in the 3M Related Literature section of other 3M components you use. Bulletin types: PB = Product Bulletin; PB-IB = Product & Instruction Bulletin; IB = Instruction Bulletin Subject Type Bulletin No. Base Films and Substrates Please visit our website to identify and select the additional Product and Instruction Bulletins you need for a successful application. Screen printing with clear 8920 ES IB 3.15 Scotchgard Graphic and Surface Protection Film 8991 or 8991R PB M Screen Print Gloss Clear 1920DR, 1930 and VI Applying screen printing clear 1920DR, 1930 and VI0402 3M Screen Print Gloss Clear 9720UV and Matte Clear 9730UV -Applying screen printing clear 9720UV or 9730UV 3M Screen Print Gloss Clear 2920DR - Applying screen printing clears 2920DR PB IB PB IB PB IB M Screen Print UV Gloss Clear 9720i PB-IB 9720i 3M Piezo Inkjet Protective Clear 8530 PB M Scotchcal Luster Overlaminate 8524 PB M Screen Print Clear 8920 ES PB 8920 Cold roll lamination IB M Graphics Market Center Warranty Brochure 3M, Scotchcal, Scotchgard and Scotchlite are trademarks of 3M Company. go to Warranties Bulletin Change Summary Clear 9720i was accidentally omitted from the Standard Clears listing on page 1. Commercial Graphics Division 3M Center, Building E-04 PO Box St. Paul, MN USA General Info Technical Info Fax M Canada P.O. Box 5757 London, Ontario Canada N6A 4T Fax M México, S.A. de C.V Av. Santa Fe No. 55 Col. Santa Fe, Del. Alvaro Obregón México, D.F Fax M Puerto Rico, Inc. Puerto Rico Industrial Park 350 Chardon Avenue, Suite 1100 San Juan PR Fax M All rights reserved. Product Bulletin GP-1-8

11 3M Transparent Conductors Clearly Visionary Clear, flexible, conductive films for EMI shielding and enhanced touch-screen functionality

12 3M Transparent Conductors design More flexibility for thin, durable, feature-rich displays 2

13 Optical Properties Taking your ideas to the next level Consumer demand for electronic devices requiring smaller enclosures, more antennas and advanced touch functionality has become a growing challenge for electronics manufacturers. 3M Transparent Conductors are a family of high-performance conductive materials engineered to help you meet that challenge, by providing an optimal balance of sheet resistance and optical performance. These next generation conductors give you a broader range of solutions for shielding displays from electromagnetic interference (EMI) generated by sensors and other electronic components. And our new patterned conductor combines very low sheet resistance and narrow interconnect width with excellent optical properties, to help improve functional performance in projected capacitive touch sensor applications. To achieve the best design solution, it s important to consider 3M transparent conductors early in your design process. Contact 3M for samples and technical assistance at , or at 3M Unpatterned Transparent Conductor Selection Guide Excellent 8853M 8857 Good Sheet Resistance (Ω/Square) 130 3M Unpatterned Transparent Conductors are constructed from a polyester film with an electrically conductive thin film specialty coating and a protective layer with antireflective properties. The unique properties of the transparent conductive coating allow excellent transmission and optics in the visible spectrum, while providing sufficient EMI shielding to support touch-screen functionality, all with a design-enabling material flexibility. 3M s portfolio of transparent conductor products lets you select the right balance of film conductivity and transparency, to match the specific needs of your application. 3

14 3M Transparent Conductors Think Thin 4

15 3M Unpatterned Transparent Conductors The high-performance alternative to ITO From ultra-thin LCD televisions to super sleek cell phones, consumers want style and simplicity in their electronic devices. And that, in turn, demands equally elegant engineering solutions. 3M Transparent Conductors can help you push the boundaries of electronic device design. With higher optical transmission than ITO, excellent conductivity, and a flexibility unique among EMI shielding materials, these conductors not only will help you design smaller, slimmer and thinner devices but also make possible the graceful curves and angles that add the style and fashion your customers demand. Don t be confined by the unbending restrictions of conventional EMI shielding materials. Instead, release the design innovations that command attention and market share. 3M s unpatterned transparent conductors for EMI shielding offer: Excellent optical performance with lower haze, higher transmission and truer color neutrality than ITO Flexible yet durable polyester backing can be die cut to conform to virtually any shape Specifying 3M Transparent Conductors early in the development process helps ensure a smooth integration into your device, saving design and manufacturing costs, while improving speed to market. Electronic devices for industrial, military or commercial use must be designed to withstand rigorous handling and environmental extremes. 3M Transparent Conductors do not become brittle or lose their shape over time, helping to maintain conductivity and optical performance, even under the toughest conditions. They can offer low sheet resistance and high EMI shielding effectiveness for these demanding applications. 5

16 Stayin Touch The growing popularity of touch-driven applications has opened up a new world of opportunities for manufacturers of all kinds of electronic devices from smart phones and point-of-sale readers to industrial controls. According to DisplaySearch, a global market research firm specializing in the electronic display industry, the touch screen market is expected to grow to $14 billion by Source: DisplaySearch 6

17 NEW 3M Patterned Transparent Conductors Engineered for advanced projected capacitive touch sensing Consumer demand for increasingly-sophisticated touch screen features packed into thinner enclosures has made EMI a growing problem for manufacturers of displays especially those used in mobile handheld devices. At the same time, new design considerations are pushing against the limits of conventional materials, such as patterned ITO on polyethylene terephthalate (PET), frequently used for projected capacitive touch sensors. Now, 3M brings you a way to ensure fast, accurate projected capacitive sensing over the entire display surface with the freedom to design devices that are more stylish, functional and reliable. New 3M Patterned Transparent Conductors are patternable, flexible, transparent conductive polyester films, offering sheet resistance that is orders of magnitude lower than current ITO/PET products. These films are constructed utilizing a highly-controllable patterning process that enables an optimal balance of optical and electrical performance. 3M Patterned Transparent Conductor material combines many of the advantages of glass-based projected capacitive sensors, such as fine conductive feature width and low sheet resistance at acceptable transmission, with the thinness and weight advantages of a film-based material. Highly flexible polyester substrate with fine conductive feature capability enables curved, narrow bezel projected capacitive touch sensor designs, supporting a variety of applications with increased available display area Combines excellent optical performance with support for state-of-the-art multi-touch capabilities Also suitable for high performance EMI shielding applications Projected capacitive touch capability, especially for larger display sizes, is improved by sensors with very low sheet resistance combined with acceptable optics, providing fast sensor response and consumer acceptance. ITO/PET constructions for consumer electronics force trade-offs in reduced optical transmission, greater haze, loss of color neutrality and wide conductive features sizes. In addition, ITO brittleness and lack of durability limits the design options available to both engineers and industrial designers. 3M Patterned Transparent Conductors minimize or eliminate such compromises. They offer lower sheet resistance values than ITO/PET constructions, with fine pitch conductive features on a filmbased projected capacitive sensor, and can be bent around curved surfaces if needed. 7

18 3M Transparent Conductors The Science ofcustomer Support For more than 100 years, 3M has focused on providing unequalled support to our customers. When you specify 3M Transparent Conductors early in your development process, we can help ensure a smooth integration into your device, saving design and manufacturing costs while enabling a faster time-to-market. 3M Electronics offers a broad range of specialized solutions for today s demanding electronics assembly applications. From adhesives, tapes, abrasives and coatings to technologies designed to detect tampering and water intrusion, 3M offers you more ways to speed assembly...add functionality...and improve the reliability of your products. As a 3M customer, you re backed by a global network of sales, manufacturing and technical resources dedicated to helping you apply 3M technologies to their full advantage. Contact 3M today for samples or technical assistance. For more information or to request samples: Call Visit Important Notice: Before using this product, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability associated with such use. Warranty; Limited Remedy; Limited Liability: 3M s product warranty is stated in its Product Literature available upon request. 3M MAKES NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. If this product is defective within the warranty period stated above, your exclusive remedy shall be, at 3M s option, to replace or repair the 3M product or refund the purchase price of the 3M product. Except where prohibited by law, 3M will not be liable for any loss or damage arising from this 3M product, whether direct, indirect, special, incidental or consequential regardless of the legal theory asserted. Electronics Markets Materials Division 3M Center, Building 225-3S-06 St. Paul, MN Please recycle. Printed in USA. 3M All rights reserved. Issued: 7/ HB M is a trademark of 3M Company.

19 3M Unpatterned Transparent Conductors Stay in Touch Simple, effective EMI shielding, plus A/R functionality in a single thin film! If you ve been experiencing EMI issues in your touch screen-enabled devices or if you re simply looking for an easy way to reduce stack thickness without sacrificing performance 3M has the solution! 3M Unpatterned Transparent Conductors are optically-clear, flexible thin films, used in a wide range of high-value portable devices for EMI shielding that includes anti-reflective properties. These transparent conductors deliver outstanding electrical and optical performance as well as improved design flexibility, making them an attractive alternative to traditional ITO-based materials.

20 3M Unpatterned Transparent Conductors Engineered to give youimproved Case in Point One of the world s largest manufacturers of PCs and peripheral devices was experiencing EMI problems with the touch sensor in a tablet device. The device had been designed without EMI shielding. Working with technical specialists from 3M, the manufacturer was able to replace the existing A/R film on the device with the multifunctional 3M Unpatterned Transparent Conductor in this case. This solution not only provided the shielding necessary to correct the EMI problem, but also provided anti-reflective properties without increasing the thickness of the stack. device reliability more 3M Unpatterned Transparent Conductors are constructed from a polyester film with an electrically conductive thin film specialty coating and a protective layer with anti-reflective properties. Offering an ideal balance of sheet resistance and optical performance, they can help improve functionality in a variety of projected capacitive touch sensor applications. This flexible, self-adhesive film is easy to incorporate into even the thinnest profile displays in many cases, with little or no re-engineering making it a virtual drop-in replacement for existing single-purpose films. The high-performance alternative to ITO Excellent optical performance with lower haze, higher transmission and truer color neutrality than ITO/PET materials Flexible yet durable polyester backing does not become brittle or lose its shape over time Can be die cut to conform to virtually any shape design freedom 3M Unpatterned Transparent Conductors Premask AR Layer Electrically Conductive Coating PET Substrate Optically Clear Adhesive Release Liner Order your FREE SAMPLE of 3M Unpatterned Transparent Conductors today! 8853M 8857 Sheet Resistance 35 ohms/sq 100 ohms/sq Important Notice: Before using this product, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability associated with such use. Warranty; Limited Remedy; Limited Liability: 3M s product warranty is stated in its Product Literature available upon request. 3M MAKES NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. If this product is defective within the warranty period stated above, your exclusive remedy shall be, at 3M s option, to replace or repair the 3M product or refund the purchase price of the 3M product. Except where prohibited by law, 3M will not be liable for any loss or damage arising from this 3M product, whether direct, indirect, special, incidental or consequential regardless of the legal theory asserted. Electronics Markets Materials Division 3M Center, Building 225-3S-06 St. Paul, MN Please recycle. Printed in USA. 3M All rights reserved. Issued: 6/ HB M is a trademark of 3M Company.

21 Technical Bulletin August, M Unpatterned Transparent Conductor (UTC) General Description The 3M Unpatterned Transparent Conductors (UTC) are a specialty coated polyester film with electrically conductive thin film coated on one surface. The 3M Unpatterned Transparent Conductor optionally can be pre-laminated to a 3M Optically Clear Adhesive (OCA). The unique properties of transparent conductive coating allow high transmission in visible spectrum and provide EMI shield in radio and microwave frequency. Applications include EMI shield for touch screen, display screen (PDP, LCD and CRT) and windows. 3M Unpatterned Transparent Conductor (UTC) 88xx Removable green cover Electrically conductive coating PET substrate 3M Unpatterned Transparent Conductor (UTC) 88xx with OCA Removable green cover Electrically conductive coating PET substrate Optically clear adhesive Releasable liner Construction Property Coating Film Substrate Type Adhesive Type (optional) Approximate Thickness Removable Green Liner Format Construction Diagram Value 3M Electrically Conductive Coating (ECC) Polyester 3M Optically Clear Adhesive (2 mil) 2, 3 or 7 mil Yes-all thicknesses Roll only or Die Cut only See Conductor drawing 3

22 3M Unpatterned Transparent Conductor (UTC) Typical Physical Properties and Performance Characteristics Definitions Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. UTC Overview The scope of this technical bulletin is limited to Unpatterned Transparent Conductive (UTC) films typically used in displays for EMI shielding and EMI Guard layer/e-field normalization layer for Capacitive Touch Sensors. Handling the UTC films and any optical films requires greater care in handling and application to minimize contamination and ensure robust assembly and design. UTC films are designed to be integrated into the display stack and are not intended to be used as the first or front surface. Selection of the 3M Unpatterned Transparent Conductor (UTC) 88xx vs. an ITO on PET film for Transparency & Surface Resistance & EMI Shielding A PET film with single layer sputtered Indium Tin Oxide layer (ITO) for EMI shielding has two overlapping performance limitations: As Visual Transmittance increases, the EMI shielding level is reduced as the ITO layer must be thinner. As EMI shielding is increased with a thicker ITO film, the Visual Transmittance is reduced. Thus, for devices where improved EMI shielding is desired, along with excellent Transmittance, the 3M Unpatterned Transparent Conductors 88xx are now available. The 3M Unpatterned Transparent Conductor 88xx offer a step-up in Transmittance with no loss in EMI shielding. Thus, the designer can improve EMI shielding and maintain Transmittance or improve Transmittance and maintain EMI shielding levels. 3M Unpatterned Transparent Conductor 88xx vs. PET ITO Technical Data Sheet (TDS) Values of Transmission % vs Surface Resistance* Transmission % based on TDS Values and Test Method Surface resistance is directly related to EMI Shielding: Lower R = Higher EMI Shielding Surface Resistance R (ohms/sq) based on TDS Values & Test Method Transmittance (%) PET-ITO Transmittance (%) 3M Unpatterned Transparent Conductor (UTC) 88xx *Technical Data sheets value reviewed is for general reference only as the TDS values were derived using different test equipment & modified versions of ASTM D1003 and sample set-up. Note: Multi-layer ITO coated PET films may have a different Transparency vs Surface Resistance relationship than noted in the above data using a more complex manufacturing process. (2)

23 3M Unpatterned Transparent Conductor (UTC) Typical Physical Properties and Performance Characteristics Definitions Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. 3M Unpatterned Transparent Conductor (UTC) 88xx vs. an PET ITO or a Wire mesh EMI Film or Display The typical performance range of the UTC film, an ITO film and a Wire Mesh based EMI film are typically in the range of: PET ITO: 70-86% Transmission with Surface resistance of Ohms/square 3M Unpatterned Transparent Conductor 88xx: 83-91% Transmission with Surface resistance of Ohms/square Wire Mesh Based EMI Films/displays: 60-88% Transmission with Surface resistance of Ohms/square The Ohms/square relates to a potential EMI shielding performance. Actual EMI shielding is based on degree and effectiveness of grounding, but in general for a well grounded EMI solution one might expect: 0.1 to 1 ohms = db EMI shielding range 1.0 to 10 ohms = db EMI shielding range 10 to 30 ohms = db EMI shielding range 30 to 150 ohms = 7-17 db EMI shielding range 150 to 300 ohms = 4-7 db EMI shielding range SE = 20 log (1+ ( Z/2Rs)) : Rs = Surface Resistance Ohms/square, Z = Impedance of free space (377ohms/sq) The Typical Wire Mesh product has excellent EMI shielding and Optical Transmission as compared to the PET ITO or EMI shielding films, but requires a more costly and complex manufacturing process. Flexibility of the 3M Unpatterned Transparent Conductor 88xx vs. an ITO on PET Film The 3M Unpatterned Transparent Conductor 88xx has a more flexible conducting and dielectric layer vs. an ITO on PET film. ITO PET films Technical Data Sheets (TDS) typically express the need to use caution when handling or bending the films as they are easily damaged. The improved flexibility of the 3M films reduces potential for cracking and EMI leakage, lowers handling damage potential for increased yields and allows the 3M Unpatterned Transparent Conductor 88xx products to be used in applications where the film could experience a bending position or placement. Environmental Testing of 3M Unpatterned Transparent Conductor 88xx vs. an ITO PET Film The 3M Unpatterned Transparent Conductor 88xx and typical ITO PET films are evaluated for environmental resistance typically with a <100 Hours (ex: 65 C/90%RH for 72 hours exposure and evaluation). A common test is to evaluate the films for changes in Transmittance and/or Surface Resistance. (3)

24 3M Unpatterned Transparent Conductor (UTC) Typical Physical Properties and Performance Characteristics Definitions Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. UTC Integration Both the 3M Unpatterned Transparent Conductor (UTC) 88xx and ITO PET films are designed to be used as a Second surface film, and not as the First or Front surface exposed to direct environmental conditions. 3M Unpatterned Transparent Conductor 88xx are designed for use within enclosures and are not designed to be exposed to direct environmental conditions of an end use application. 3M Unpatterned Transparent Conductors 88xx environmental performance is influenced by the final assembly design construction. Each end user needs to determine fitness for use of the 3M Unpatterned Transparent Conductor in their intended end use assembly and anticipated environmental conditions as this will affect the 3M Unpatterned Transparent Conductor performance. 3M Unpatterned Transparent Conductor 88xx Sample Preparation for Testing: 3M Unpatterned Transparent Conductor was laminated to a glass slide (Erie Scientific 2957F) using 3M Optically Clear Adhesive (OCA) unless noted otherwise. Optical measurements were made using a BYK Gardner TCS Plus Spectrophotometer model 8870 (BYK Gardner, USA) in accordance with ASTM D1003, E308, CIE Spectral response measures visible spectrum from 380 to 720 nm using d/8º geometry where total reflectance is specular included. Grounding of the 3M Unpatterned Transparent Conductor 88xx The 3M Unpatterned Transparent Conductor 88xx can be grounded to improve or enhance the EMI shielding performance of the film. Care should be taken in selection of a grounding tape to ensure surface compatibility. In general, the 3M Unpatterned Transparent Conductor 88xx can be tested for effective grounding with a selection of 3M Electrically Conductive Adhesive Transfer Tapes. Suggested ECATT tapes to be considered and evaluated include, but is not limited to, 3M ECATT 9709S, 9725 and Final assembly configuration, environmental conditions, end use conditions, etc. will impact the final ECATT grounding performance and should be evaluated to determine fitness for use. (4)

25 3M Unpatterned Transparent Conductor (UTC) Typical Physical Properties and Performance Characteristics Definitions Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. EMI Shielding and Electrical Connection. 3M Unpatterned Transparent Conductors (UTC) can be integrated into display assemblies with varying degree s of EMI shielding performance. Depending on final functional use of the UTC film, the UTC film may not require grounding. The UTC film can be used as a EMI shielding film and as a Capacitive Touch Sensor Guard or E-Fileld normalization layers. A design that grounds EMI shielding as part of a Faraday enclosure configuration offers the optimum performance of the EMI shielding film. The shielding function of the conductive film may not be fully utilized if the EMI shielding is not grounded. Each end use application needs to test and validate if the 3M Unpatterned Transparent Conductor 88xx needs to be grounded to meet the end users performance needs. In some applications, the EMI shielding film may act as an antenna if the desired Faraday cage design is not properly completed or terminated (for example, touch screen with transparent EMI shielding film applied to the back is terminated on one corner). The EMI attenuation level depends on surface resistance of the conductive film, lower resistance correlates to higher EMI shielding. Good electrical contact with conductive film is essential for grounding and EMI shielding requirements. Unlike a metal foil, the 3M Unpatterned Transparent Conductor 88xx transparent conductive coating is very thin (< micron thick), direct physical contact with sharp probes such as alligator clips may poke through the coating and result in poorly reliable contact. Electrically Conductive Adhesive Transfer Tapes (ECATT) or Electrically Conductive Gaskets (ECG) which are compatible with the EMI shielding film s conductive coating can also be used for electrical connection. Optical Properties: The 3M Unpatterned Transparent Conductor 88xx may be designed with surface optical properties to minimize surface reflection over the entire visible spectrum and is optimized when the conductive conductor surface side is exposed to an air interface. The AR coating provides for low reflection to the air interface to enhance the display contrast and enhances transmission. Since the AR coating is optimized for air as the incident medium, it is not recommended to apply adhesive or coating on the conductive coating side of the conductor as this will affect the AR performance. Depending on end-user design, doing so may or may not reduce the optical performance of the stack or laminate of the end use design. The UTC is not intended as a primary AR film, but does utilize specific coatings to minimize reflectivity from the UTC s conductive layer. Handling. 3M Unpatterned Transparent Conductors are provided with a removable protective cover liner to protect from typical handling damage. The protective film layer protecting the conductive film layer should be removed in the final stage of the assembly process. Care should be taken when handling the transparent conductive film to avoid contamination, scratches or degradation to the coated surface. Using gloves helps to prevent transfer of finger print oil to conductive coating or nonconductive coating side is suggested. Moving the conductive coating over a surface may result in scratching the coating, visual defects and lower reliability. It is suggested that if cleaning is needed of the 3M Unpatterned Transparent Conductor 88xx, a 90%/10% IPA/Water blend be used. Blot only with a non-scratch cloth to prevent damage to the conductive surface. The 3M Unpatterned Transparent Conductor 88xx is flexible, but care should be taken to minimize any mechanical damage to the conductive surface on the film when handling. It may be preferred to remove the UTC protective film at the final step of assembly to minimize handling damage, contamination, defects, scratches that could affect the quality of the UTC in the application. (5)

26 3M Unpatterned Transparent Conductor (UTC) Typical Physical Properties and Performance Characteristics Definitions Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. OCA Adhesive Lamination. 3M Optically Clear Adhesive (OCA) or 3M Contrast Enhancement Film (CEF) is recommended for product lamination. For lamination of Transparent EMI Film with OCA / Or applications of Transparent EMI Film with pre-applied OCA, the 3M OCA Lamination document should be review: The lamination of an OCA adhesive film to the Conductor non-conductive side is suggested. The lamination process overview is found below: For detailed information, please request the complete document. 3M Optically Clear Adhesive and 3M Contrast Enhancement Film Step by Step Bubble-Free Lamination and Product Recommendation General Description This bulletin describes the method of laminating rigid-to-flex or rigid-to-rigid surfaces using 3M Optically Clear Adhesive (OCA) or 3M Contrast Enhancement Film (CEF) for prototype purposes. The information presented in this bulletin should be considered representative or typical. The user is responsible for evaluating the lamination process under actual conditions of use and with the substrates intended for the customer application to determine specific process parameters necessary in the individual customer s application. Process Overview High quality rigid-to-rigid and rigid-to-flexible lamination requires special lamination equipment. Hand lamination is to be used only for proving concepts. The lamination process is described in detail in the next section. Substrates first need to be laminated together and inspected for entrapped air. If signs of air entrapment are observed, the laminate needs to be autoclaved to remove air. When one of the substrates is polycarbonate (PC) or Acrylic (PMMA), extra testing is required to ensure the plastic is not outgassing. Substrates such as PC and PMMA tend to absorb moisture and outgas when exposed to high temperature and high humidity, creating bubble defects in laminated parts. Plastics can be prebaked to drive moisture out. Process Description A brief description of lamination process is provided in the following table. Brief Summary of Lamination Process Pre-bake in dry, clean oven Temperature 85 C (for PMMA and PC only) Duration 2-5 hours Lamination Room Clean Room Temperature Room 24 C and above Autoclave Temperature C Pressure Duration PSI minutes Durability Temperature 60 C Humidity Duration 90% R.H hours A comprehensive description of lamination process is provided in the following section. (6)

27 3M Unpatterned Transparent Conductor (UTC) Typical Physical Properties and Performance Characteristics Definitions Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. Review of Basic Properties of the 3M Unpatterned Transparent Conductor (UTC) 88xx Properties as noted in TDS Consult Technical Data Page for property values ranges. Haze: A reduction in transparency related to the PET film (type, thickness) and ECC properties. Haze data in the technical data pages were under A or C illuminants for 2º observers. Transmitted & Reflected Color (CIE Yxy): When light strikes an interface between two materials (Air/PET, PET/PET, Air/Glass/OCA/PET, etc.), the change in refractive index at the interface(s) can cause light to be reflected at the interface surface or refracted into the material at the interface. Light entering the next material can be: Absorbed, Transmitted through the material, or Scattered within the interface and it may eventually pass out of the front, back or side of the material. In optical grade PET s, the majority of the light that enters the conductor is transmitted through the conductor. As visual light is in a frequency range from generally nm,and the human eye perceives the frequencies in the brain as a color. We have come to associate a subset of these frequencies ranges with a set of Primary colors with a Blue (Z) 450nm, Green (Y) 550nm and a Red (X) 600nm. Thus, any color of the spectrum can be obtained by varying the XYZ content and where they are on the relative scale for the primary color (ie: Blue Z generally ranges from 380nm to about 540nm). As a test means to review the 3M Unpatterned Transparent Conductors characteristics, colorimetric data was collected in CIE Yxy (1931) and CIE LABL*a*b* (1976) color scales under D65 illuminants for 10º observers. The CIE is the French abbreviation for the Commision International de l Eclairage (ie: International Commission on Light). The CIE in 1931 devised a test method of using the 3 primary colors in an additive mixture to describe any color mixture: The revised CIE LAB (L*a*b*) (1976) was devised to relate an intensity of the 3 primary colors of Red, Green and Blue. Lightness (L*), Redness/Greenness (a*) and Yellowness/Blueness (b*).the a* and b* are mathematically related to the Yxy colors based on test method specifics. For CIE LAB (L*a*b*), the L* relates to Total Luminance Transmission through the conductor (other light is absorbed or reflected) or Lightness with the scale being from 0 (black) to 100-(white), a* and b* scales vary by the specific test set-up, but range from - to + values. Total Luminous Transmittance & Reflectance: Percentage total luminous reflectance and percentage luminous transmittance were taken as value of chromaticity Y. Luminous reflectance was measured with a blackened glass slide (glass side of the laminate, opposite to conductive coating side, was spray-painted with Rust Oleum black epoxy model ). For 3M Unpatterned Transparent Conductors with OCA and laminated to glass without black coating on glass backside, typical luminous reflectance was measured at a higher % due to glass backside reflection. For 3M Unpatterned Transparent Conductors that are Free Standing conductor (without black coating on PET backside), luminous transmittance and reflectance will vary with test method and exact sample configuration. Wave length frequency range is nm for transmittance. Reflectance wave length 550nm. (7)

28 3M Unpatterned Transparent Conductor (UTC) Typical Physical Properties and Performance Characteristics Definitions Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. Infared Transmittance: 3M Unpatterned Transparent Conductor (UTC) 88xx are typically < 5-10% in the IR frequency range (> 800nm) for transmittance. Surface Resistance: Surface resistance was measured by a non-contact Eddy current method using Delcom Bench top Conductance Monitor model 717B (Delcom Instruments, Inc., USA). EMI Shielding Effectiveness: Shielding effectiveness (SE) for frequency range of 100 MHz - 3 GHz was characterized using ASTM D4935 (TEM cell method), for higher frequency range, a modified IEEE 299 test procedure for SE for enclosure (antenna-to-antenna method) was utilized. Electrical Breakdown Strength: Electrical breakdown strength was estimated using ASTM D149. Durability: Thermal durability of heat & humidity resistance of the 3M Unpatterned Transparent Conductor test was determined by examining the changes in surface resistance ( R/R0 x.x%), changes in transmittance ( T/T0 x.x%) and appearance of visual defects after exposure to environmental aging conditions Visual Spectra Region: The frequency range of the Electro Magnetic Spectrum association with what the human eye can perceive. The frequency range is typically noted as 380nm to 780nm. This spectral range is of most interest when reviewing light Transmission % and color information regarding 3M Unpatterned Transparent Conductors. (8)

29 3M Unpatterned Transparent Conductor (UTC) Certification/Recognition MSDS: 3M has not prepared a MSDS for this product which is not subject to the MSDS requirements of the Occupational Safety and Health Administration s Hazard Communication Standard, 29 C.F.R (b)(6)(v). When used under reasonable conditions or in accordance with the 3M directions for use, the product should not present a health and safety hazard. However, use or processing of the product in a manner not in accordance with the directions for use may affect its performance and present potential health and safety hazards. TSCA: This product is defined as an article under the Toxic Substances Control Act and therefore, it is exempt from inventory listing requirements. RoHs Complaint/REACH Compliant: This product complies with the European Union s Restriction of Hazardous Substances (RoHs) initiative and with European REACH regulations 2002/95/EC and 2005/618/EC. For Additional Information To request additional product information or to arrange for sales assistance, call toll free Address correspondence to: 3M, Electronics Markets Materials Division, 3M Center, Building 225-3S-06, St. Paul, MN Our fax number is or In Canada, phone: In Puerto Rico, phone: In Mexico, phone: Important Notice All statements, technical information, and recommendations related to 3M s products are based on information believed to be reliable, but the accuracy or completeness is not guaranteed. Before using this product, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability associated with such use. Any statements related to the product which are not contained in 3M s current publications, or any contrary statements contained on your purchase order shall have no force or effect unless expressly agreed upon, in writing, by an authorized officer of 3M. Warranty; Limited Remedy; Limited Liability. This product will be free from defects in material and manufacture at the time of purchase. 3M MAKES NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. If this product is defective within the warranty period stated above, your exclusive remedy shall be, at 3M s option, to replace or repair the 3M product or refund the purchase price of the 3M product. Except where prohibited by law, 3M will not be liable for any indirect, special, incidental or consequential loss or damage arising from this 3M product, regardless of the legal theory asserted. 3 Electronics Markets Materials Division 3M Center, Building 225-3S-06 St. Paul, MN phone fax 3M is a trademark of 3M Company. Please recycle. Printed in U.S.A. 3M All rights reserved (9) 3

30 Preliminary Technical Data June M Unpatterned Transparent Conductor (UTC) EAS-1738 Developmental Status Notice 3M Unpatterned Transparent Conductor (UTC) EAS-1738 is a 3M developmental product. It is currently available on a limited basis and is only provided for market & technical evaluation. The future availability, formulation, performance properties, and pricing for the material are not guaranteed and are subject to change. To discuss your evaluation, please contact your local 3M Technical Service. Product Description Note: The data presented in this preliminary data sheet are 3M s best estimates for the current product construction being evaluated. While this product is being developed for general commercialization, this product is still considered developmental at this time and changes in product construction or process conditions may occur that can cause subsequent changes in product characteristics or performance. User should consult with 3M before making any business plans in reliance upon the future availability or the current properties of this product. 3M Unpatterned Transparent Conductor (UTC) EAS-1738 is a specialty coated polyester film with an electrically conductive thin film. The unique properties of the product enable high transmission in the visible spectrum with EMI shielding in radio and microwave frequencies, as well as an anti-reflective capability. Applications include transparent conductors, guard layers, and/or EMI shields for touch screen, display screen (PDP, LCD and CRT), window, and solar applications. 3

31 3M Unpatterned Transparent Conductor (UTC) EAS-1738 Product Construction 3M Unpatterned Transparent Conductor (UTC) EAS-1738 Removable cover Electrically conductive coating PET substrate (2 mil) Optically clear adhesive (1 or 2 mil) Releasable liner Property Coating Substrate Type Adhesive Type Approximate Thickness UTC EAS M Optically Clear Adhesive 8271 or 8272 Construction Value Electrically conductive coating Polyester (2 mil) 3M Optically Clear Adhesive 8271 or 8272 (1 or 2 mil) 2 mil 1 mil or 2 mil See drawing (2)

32 3M Unpatterned Transparent Conductor (UTC) EAS-1738 Typical Physical Properties and Performance Characteristics Note: The following technical information and data is based upon limited 3M testing conditions and should not be used for specification purposes. Properties of 3M Unpatterned Transparent Conductor (UTC) UTC EAS-1738 Optical Haze 1 1.0% Y Transmitted Color (CIE Yxy) 2 x y Transmittance % L Reflected Color (CIE LAB) 2 a* 0.27 b* Refractive Index Birefringence (Nx-Ny) 0.01 Electrical Surface Resistance (Ohms/square) 3 EMI Shielding Effectiveness ohms/sq < 10.0 db Durability Heat / Humidity 5 Flexural Endurance 6 65 C / 90% RH, 72 hours > 100 cycles 3M Unpatterned Transparent Conductor (UTC) EAS-1738 is laminated to a glass slide (Erie Scientific 2957F). Optical measurements were made using a BYK Gardner TCS Plus Spectrophotometer model 8870 and Haze-Gard Plus (BYK Gardner, USA) in accordance with ASTM D1003, E308, and CIE Haze and Transmittance data were measured with Haze-Gard Plus. 2 Colorimetric data were measured with BYK Gardner TCS Plus Spectrophotometer model 8870 in CIE Yxy and CIE LAB (L*a*b*) color scales under D65 illuminants for 10º observers. 3 Surface resistance was measured by Eddy current method using Delcom Benchtop Conductance Monitor model 717B (Delcom Instruments, Inc., USA). 4 Shielding effectiveness (SE) was measured with a modified IEEE 299 test procedure for SE for enclosure (antenna-to-antenna method) for film sample with surface resistance of 169 ohms per square and < 2GHz. 5 Thermal durability of heat/ humidity test was determined by examining the changes in surface resistance ( R/R 0 <0.3), changes in transmittance ( T/T 0 <0.05) and appearance of visual defects. 6 Flexural endurance: MIT folding test (JIS C 4671) for 0.5 x 6 inch test film specimen (radius of curvature = 1mm, speed = 175 double folds/ min, bending angle = 135 degree, tension = 1kg force). Number of cycles is determined by examining the changes in electrical resistance of the test specimen ( R/R 0 <0.3). Static bending test showed insignificant resistive change, and was done by 180 degree folding the test specimen which underwent the roll lamination (20 psi, 10 fpm). (3)

33 3M Unpatterned Transparent Conductor (UTC) EAS-1738 Typical Physical Properties and Performance Characteristics (continued) Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes transmittance (%) reflectance (%) wavelength (nm) % transmittance % reflectance *Optical measurements of 3M Unpatterned Transparent Conductor (UTC) EAS-1738 (laminated to glass slide) were made using a BYK Gardner TCS Plus Spectrophotometer model 8870 (BYK Gardner, USA) in accordance with ASTM D1003, E308, CIE Spectral response measures visible spectrum from 380 to 720 nm using d/8º geometry where total reflectance is specular included. Reflectance was measured on conductive coating side. (4)

34 3M Unpatterned Transparent Conductor (UTC) EAS-1738 Typical Physical Properties and Performance Characteristics (continued) Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. 20 EMI shielding effectiveness (db) frequency (GHz) 10 ***Shielding effectiveness (SE) was measured with a modified IEEE 299 test procedure for SE for enclosure (antenna-toantenna method) for sample with surface resistance of 169 ohms per square. (5)

35 3M Unpatterned Transparent Conductor (UTC) EAS-1738 Application Notes Optoelectronic Assembly. 3M Unpatterned Transparent Conductor (UTC) EAS-1738 can be integrated into display assemblies or transparent circuitry as transparent conductor as well as guard and EMI shielding layer. Grounding or electrical connection may be needed. For EMI shield application, the noise attenuation level depends on surface resistance of the conductive film, lower resistance correlates to higher EMI shielding. Good electrical contact with conductive film is essential for grounding and EMI shielding requirements. Unlike a metal foil, the conductive coating is very thin (< micron thick), direct physical contact with sharp probes such as alligator may poke through the coating and result in poorly reliable contact. Conductive paste such as Ag screen printing can be implemented to provide more robust conductive contact pad with low contact resistance. 3M Electrically Conductive Adhesive Transfer Tapes (ECATT) or gaskets which are compatible to the conductive coating can also be used for electrical connection. Handling. 3M UTC EAS-1738 is provided with removable protective cover liner. Nevertheless, care should be taken when handling the transparent conductive film to avoid contamination, scratches or degradation to the coated surface. Using gloves helps to prevent transfer of finger print oil to conductive coating. Moving the conductive coating over a surface may result in scratching the coating, visual defects and lower reliability. Adhesive Lamination. Please review 3M Optically Clear Adhesive technical bulletins for a general lamination guide and product recommendation as noted below: 3M Optically Clear Adhesive and 3M Contrast Enhancement Film Step by Step Bubble-Free Lamination and Product Recommendation (6)

36 3M Unpatterned Transparent Conductor (UTC) EAS-1738 Certification/Recognition MSDS: 3M has not prepared a MSDS for this product which is not subject to the MSDS requirements of the Occupational Safety and Health Administration s Hazard Communication Standard, 29 C.F.R (b)(6)(v). When used under reasonable conditions or in accordance with the 3M directions for use, the product should not present a health and safety hazard. However, use or processing of the product in a manner not in accordance with the directions for use may affect its performance and present potential health and safety hazards. TSCA: This product is defined as an article under the Toxic Substances Control Act and therefore, it is exempt from inventory listing requirements. RoHs Complaint/REACH Compliant: This product complies with the European Union s Restriction of Hazardous Substances (RoHs) initiative and with European REACH regulations 2002/95/EC and 2005/618/EC. For Additional Information To request additional product information or to arrange for sales assistance, contact your local 3M Technical Service. In the U.S., address correspondence to: 3M, Electronics Markets Materials Division, 3M Center, Building 209-1C-30, St. Paul, MN Technical Information and Data Technical information and data, recommendations, and other statements provided by 3M are based on information, tests, or experience which 3M believes to be reliable, but the accuracy or completeness of such information is not guaranteed. Such technical information and data are intended for persons with knowledge and technical skills sufficient to assess and apply their own informed judgment to the information. Important Notice This 3M material is a developmental material that has not been introduced or commercialized for general sale, and its formulation, performance characteristics and other properties, and availability are not guaranteed and are subject to change without notice. User is responsible for evaluating and determining whether a 3M material is suitable and appropriate for a particular use and intended application. Disclaimer of Warranty This 3M material is made available as AS IS. 3M MAKES NO WARRANTIES OR CONDITIONS, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY ARISING OUT OF A COURSE OF DEALING, CUSTOM, OR USAGE OF TRADE. Limitation of Liability This product (the Product ) is developmental. As such, Product may vary product to product or lot to lot or be changed in the future without notice. 3M does not guarantee future availability. Recipient has sole responsibility for determining whether if a Product is fit for Recipient s particular purposes and suitable for Recipient s production methods. 3M MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO: (1) IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, AND ARISING OUT OF A CUSTOM, COURSE OF DEALING, OR USAGE OF TRADE; (2) WARRANTIES RELATING TO A PRODUCT S EFFECTIVE LIFE OR ABILITY TO SURVIVE ANY TESTING; OR (3) A PROMISE THAT TECHNICAL ISSUES NECESSARY TO DEVELOP A COMMERCIAL VERSION OF A PRODUCT WILL BE RESOLVED. 3 Electronics Markets Materials Division TCS Plus is a trademark of BYK Gardner. 3 3M Center, Building 209-1C-30 3M is a trademark of 3M Company. St. Paul, MN Please recycle. Printed in U.S.A. 3M All rights reserved. (7)

37 Preliminary Technical Data June M Unpatterned Transparent Conductor (UTC) EAS-1898 Developmental Status Notice 3M Unpatterned Transparent Conductor (UTC) EAS-1898 is a 3M developmental product. It is currently available on a limited basis and is only provided for market & technical evaluation. The future availability, formulation, performance properties, and pricing of the material are not guaranteed and are subject to change. To discuss your evaluation, please contact your local 3M Technical Service. Product Description Note: The data presented in this preliminary data sheet are 3M s best estimates for the current product construction being evaluated. While this product is being developed for general commercialization, this product is still considered developmental at this time and changes in product construction or process conditions may occur that can cause subsequent changes in product characteristics or performance. User should consult with 3M before making any business plans in reliance upon the future availability or the current properties of this product. 3M Unpatterned Transparent Conductor (UTC) EAS-1898 is a specialty coated polyester film with an electrically conductive thin film. The unique properties of the product enable high transmission in the visible spectrum with EMI shielding in radio and microwave frequencies, as well as an anti-reflective capability. Applications include transparent conductors, guard layers, and/or EMI shields for touch screen, display screen (PDP, LCD and CRT), window, and solar applications. 3

38 3M Unpatterned Transparent Conductor (UTC) EAS-1898 Construction 3M Unpatterned Transparent Conductor (UTC) EAS-1898 Removable clear cover Electrically conductive coating PET substrate Optically clear adhesive Releasable clear liner Property Coating Substrate Type Adhesive Type Approximate Thickness UTC EAS M Optically Clear Adhesive 8172 Total Thickness Construction Value Electrically conductive coating Polyester (2 mil) 3M Optically Clear Adhesive 8172 (2 mil) 2 mil 2 mil 4 mil See drawing (2)

39 3M Unpatterned Transparent Conductor (UTC) EAS-1898 Typical Physical Properties and Performance Characteristics Note: The following technical information and data is based upon limited 3M testing conditions and should not be used for specification purposes. Properties of 3M Unpatterned Transparent Conductor (UTC) UTC EAS-1898 Optical Haze % Y 89.9 Transmitted Color (CIE Yxy) 1 x y Transmittance % L Reflected Color (CIE LAB) 1 a* 1.05 b* Refractive Index Birefringence (Nx-Ny) Electrical Surface Resistance (Ohms/square) 3 35 EMI Shielding Effectiveness 4 db Durability Heat / Humidity 5 PASS 65 C / 90% RH, 7 days Flexural Endurance 6 PASS > 1000 cycles 3M Unpatterned Transparent Conductor (UTC) EAS-1898 was laminated to a glass slide using 3M Optically Clear Adhesive 8172 (2 mil). 1 Colorimetric and Haze data were measured using HunterLab UltraScan Pro Spectrophotometer in CIE Yxy and CIE LAB (L*a*b*) color scales under D65 illuminants for 10º observers. 2 Transmittance data was measured with Haze-Gard Plus. 3 Surface resistance was measured by Eddy current method using Delcom Benchtop Conductance Monitor model 717B (Delcom Instruments, Inc., USA). 4 Shielding effectiveness (SE) was measured with a modified IEEE 299 test procedure for SE for enclosure (antenna-to-antenna method) Averaged between 1.0 GHz to 3.0 GHz. 5 Thermal durability of heat/ humidity test was determined by examining the changes in surface resistance ( R/R 0 <0.3), changes in transmittance ( T/T 0 <0.05) and appearance of visual defects. 6 Flexural endurance: MIT folding test (JIS C 4671) for 0.5 x 6 inch test film specimen (radius of curvature = 1mm, speed = 175 double folds/ min, bending angle = 135 degree, tension = 1kg force). Number of cycles is determined by examining the changes in electrical resistance of the test specimen ( R/R0<0.3). Static bending test showed insignificant resistive change, and was done by 180 degree folding the test specimen which underwent the roll lamination (20 psi, 10 fpm). (3)

40 3M Unpatterned Transparent Conductor (UTC) EAS-1898 Typical Physical Properties and Performance Characteristics (continued) Note: The following technical information and data is based upon limited 3M testing conditions and should not be used for specification purposes transmittance (%) reflectance (%) wavelength (nm) % transmittance % reflectance *Optical measurements of 3M Unpatterned Transparent Conductor (UTC) EAS-1898 (laminated to glass slide) were made using a HunterLab UltraScan Pro Spectrophotometer in CIE Yxy and CIE LAB (L*a*b*) color scales under D65 illuminants for 10º observers in accordance with ASTM D1003, E308, CIE Spectral response measures visible spectrum from 380 to 720 nm. Reflectance was measured on conductive coating side. (4)

41 3M Unpatterned Transparent Conductor (UTC) EAS-1898 Typical Physical Properties and Performance Characteristics (continued) Note: The following technical information and data is based upon limited 3M testing conditions and should not be used for specification purposes db Attentuation Frequency (MHz) ***Shielding effectiveness (SE) was measured with a modified IEEE 299 test procedure for SE for enclosure (antenna-toantenna method). (5)

42 3M Unpatterned Transparent Conductor (UTC) EAS-1898 Application Notes Optoelectronic Assembly. 3M Unpatterned Transparent Conductor (UTC) EAS-1898 can be integrated into display assemblies or transparent circuitry as transparent conductor as well as guard and EMI shielding layer. Grounding or electrical connection may be needed. For EMI shield application, the noise attenuation level depends on surface resistance of the conductive film, lower resistance correlates to higher EMI shielding. Good electrical contact with conductive film is essential for grounding and EMI shielding requirements. Unlike a metal foil, the conductive coating is very thin (< micron thick), direct physical contact with sharp probes such as alligator may poke through the coating and result in poorly reliable contact. Conductive paste such as Ag screen printing can be implemented to provide more robust conductive contact pad with low contact resistance. 3M Electrically Conductive Adhesive Transfer Tapes (ECATT) or gaskets which are compatible to the conductive coating can also be used for electrical connection. Handling. 3M UTC EAS-1898 is provided with removable protective cover liner. Nevertheless, care should be taken when handling the transparent conductive film to avoid contamination, scratches or degradation to the coated surface. Using gloves helps to prevent transfer of finger print oil to conductive coating. Moving the conductive coating over a surface may result in scratching the coating, visual defects and lower reliability. Adhesive Lamination. Please review 3M OCA technical bulletins for a general lamination guide and product recommendation as noted below: 3M Optically Clear Adhesive and 3M Contrast Enhancement Film Step by Step Bubble-Free Lamination and Product Recommendation (6)

43 3M Unpatterned Transparent Conductor (UTC) EAS-1898 Certification/Recognition MSDS: 3M has not prepared a MSDS for this product which is not subject to the MSDS requirements of the Occupational Safety and Health Administration s Hazard Communication Standard, 29 C.F.R (b)(6)(v). When used under reasonable conditions or in accordance with the 3M directions for use, the product should not present a health and safety hazard. However, use or processing of the product in a manner not in accordance with the directions for use may affect its performance and present potential health and safety hazards. TSCA: This product is defined as an article under the Toxic Substances Control Act and therefore, it is exempt from inventory listing requirements. RoHs Complaint/REACH Compliant: This product complies with the European Union s Restriction of Hazardous Substances (RoHs) initiative and with European REACH regulations 2002/95/EC and 2005/618/EC. For Additional Information To request additional product information or to arrange for sales assistance, contact your local 3M Technical Service. In the U.S., address correspondence to: 3M, Electronics Markets Materials Division, 3M Center, Building 209-1C-30, St. Paul, MN Technical Information and Data Technical information and data, recommendations, and other statements provided by 3M are based on information, tests, or experience which 3M believes to be reliable, but the accuracy or completeness of such information is not guaranteed. Such technical information and data are intended for persons with knowledge and technical skills sufficient to assess and apply their own informed judgment to the information. Important Notice This 3M material is a developmental material that has not been introduced or commercialized for general sale, and its formulation, performance characteristics and other properties, and availability are not guaranteed and are subject to change without notice. User is responsible for evaluating and determining whether a 3M material is suitable and appropriate for a particular use and intended application. Disclaimer of Warranty This 3M material is made available as AS IS. 3M MAKES NO WARRANTIES OR CONDITIONS, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY ARISING OUT OF A COURSE OF DEALING, CUSTOM, OR USAGE OF TRADE. Limitation of Liability This product (the Product ) is developmental. As such, Product may vary product to product or lot to lot or be changed in the future without notice. 3M does not guarantee future availability. Recipient has sole responsibility for determining whether if a Product is fit for Recipient s particular purposes and suitable for Recipient s production methods. 3M MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO: (1) IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, AND ARISING OUT OF A CUSTOM, COURSE OF DEALING, OR USAGE OF TRADE; (2) WARRANTIES RELATING TO A PRODUCT S EFFECTIVE LIFE OR ABILITY TO SURVIVE ANY TESTING; OR (3) A PROMISE THAT TECHNICAL ISSUES NECESSARY TO DEVELOP A COMMERCIAL VERSION OF A PRODUCT WILL BE RESOLVED. 3 Electronics Markets Materials Division 3 3M Center, Building 209-1C-30 3M is a trademark of 3M Company. St. Paul, MN Please recycle. Printed in U.S.A. 3M All rights reserved. (7)

44 Preliminary Technical Data March M Patterned Transparent Conductor Developmental Status Notice 3M Patterned Transparent Conductor (PTC) is a 3M developmental product. It is currently available on a limited basis and is only provided for market & technical evaluation. The future availability, formulation, performance properties, and pricing for the material are not guaranteed and are subject to change. To discuss your evaluation, please contact your local 3M Technical Service. Product Description Note: The data presented in this preliminary data sheet are 3M s best estimates for the current product construction being evaluated. While this product is being developed for general commercialization, this product is still considered developmental at this time and changes in product construction or process conditions may occur that can cause subsequent changes in product characteristics or performance. User should consult with 3M before making any business plans in reliance upon the future availability or the current properties of this product. 3M Patterned Transparent Conductor (PTC) is a clear film with thin and narrow silver lines patterned on its surface. Typical primary uses include touch sensors, conductive front planes, and high performance EMI shielding. Secondary uses include antennas. 3M PTC films are custom designed to meet unique customer specified requirements. Key Features Highly conductive silver traces enable high performance systems Flexible materials suitable for use curved applications Narrow interconnect capability allows edge-to-edge displays with very narrow bezels Film-based systems allow thin stack-ups for electronic devices Fast turnaround of samples Optically clear adhesive layers can be incorporated to facilitate lamination Typical Product Construction (for Touch Sensor stack) Product Construction #1 Product Construction #2 3