Google Pixel DISASSEMBLE June 4th, 2018 Allen Wang PennEngineering www.pemnet.com 1
Google Pixel Teardown www.pemnet.com 2
Details & Findings Pictures and Description of the Google Pixel and our disassembly process. www.pemnet.com 3
Take out SIM card tray Step 1: Power off the cellphone and take out the SIM card tray Remove the Sim card tray from the phone using the included Eject pin. One rubber gasket used in here( Circled in Pink) for water resistance. In this step, no mechanical fasteners were found. www.pemnet.com 4
Take off the screen Step 2: Take off the screen of cellphone There are no screws used on the outside of the phone. The screen is fixed to the cellphone body with adhesive. All of this is designed for water resistance. Between the screen and phone body, one flexible cable fixed with two screws. These two screws thread into inserts in Blue on Slide #10 Metal-press-plate Thickness: 0.3mm Stainless Quantity:1 Thread Size: M1.4*0.3 Recess: T-5 Head diameter: ø2.98-3.01mm Head thickness: 0.52mm Carbon steel + Bright Zinc Quantity: 2 Overall Length: 4.02mm Nylon locking patch www.pemnet.com 5
Disassemble mid-frame Step 3: Disassemble the mid-frame Total of twelve screws used here to assemble the mid-frame with chassis of cellphone. One is Torx (Circled in Blue) + eleven Philips screws (Circled in Pink), Thread Size: M1.4*0.3 Recess: T-5 Head diameter: ø2.98-3.01 mm Head thickness: 0.52 mm Carbon steel + Bright Zinc Quantity: 1 Overall Length: 4.02 mm Nylon locking patch This screw threads into insert circled in Green on Slide #10 This screw is same as shown on Slide #5 Thread Size: M1.4*0.3 Recess: PH 00 Head diameter:ø1.98-2.01mm Head thickness: 0.33 mm Carbon steel + Black Zinc Quantity: 11 Overall Length: 3.75 mm Nylon locking patch These screws thread into inserts circled in Pink on Slide #10 www.pemnet.com 6
Take off mid-frame Step 4: Take off the mid-frame In addition to the twelve screws (mentioned on Slide #6), there is a flexible cable(circled in Yellow) connect to the chassis In this step, no mechanical fasteners were found. www.pemnet.com 7
Disassemble main board Step 5: Disassemble the main board (To be cont d) After removing the mid-frame, another two screws (Circled in Pink) are found which are used to attach the main board to the chassis. Four flexible cable(circled in Blue) connected on the main board. Thread Size: M1.4*0.3 Recess: PH 00 Head diameter:ø2.9 mm Head thickness: 0.43 mm Carbon steel + Bright Zinc Quantity: 2 Overall Length: 2.33 mm Nylon locking patch These two screws thread into inserts circled in Yellow on Slide #10 Disassemble the cable connectors. www.pemnet.com 8
Take off main board Step 5: Disassemble the main board (Cont d) Remove one cable connector (Circled in Pink) and two radio frequency lines (Circled in Blue) on the bottom side of main board, then the main board can be taken off the chassis. Two radio frequency lines Flexible cable connector for backmounted fingerprint scanner. www.pemnet.com 9
Remove insert at top of chassis Step 6: Remove insert at top of chassis After removing the main board, eight inserts are found in chassis. These inserts are pressed in chassis and made of Aluminum. Thread Size: M1.4*0.3 Outside diameter: ø2.85mm Carbon steel + Plating Quantity: 9 Overall Length: 2mm Inserts circled in Blue: mate with screws on Slide #5, Inserts circled in Green: mate with Torx screws on Slide #6, Inserts circled in Pink: mate with Philips screws on Slide #6, Inserts circled in Yellow: mate with screws on Slide #8, www.pemnet.com 10
Take off cameras Step 7 Take off cameras Disassemble two cable connectors and take off the front-facing camera(circled in Blue) and rearfacing camera(circled in Pink). In this step, no mechanical fastener were found. Back view for rearfacing camera www.pemnet.com 11
Take off bottom PCB board Step8 Take off PCB board at bottom Take off the right part of PCB board at bottom. (the screws used to fixed is unscrewed on Slide #5) In this step, no mechanical fasteners were found. Two plastic pins (Circled in Pink) At the bottom side, adhesive is used. Pin holes for location. www.pemnet.com 12
Take off USB port Step 9: Remove USB port Most screws are disassembled on Slide #5, and one more screw (Circled in Pink) used in here to fix the USB port on chassis. Thread Size: M1.4*0.3 Recess: PH 00 Head diameter ø2.9 mm Head thickness: 0.43 mm Carbon steel + Bright Zinc Quantity: 1 Overall Length: 2.33 mm Nylon locking patch Adhesive is used on the bottom side. This screw is same as shown on Slide #8 Inserts for this screw threads in shown on Slide # 14 www.pemnet.com 13
Remove inserts at bottom of chassis Step 10 Remove inserts at bottom of chassis After Removing the PCB boards from the bottom, eight carbon steel inserts and one brass insert(circled in Yellow) are removed. The brass insert is pressed in plastic which is molded onto the chassis and carbon inserts are pressed in Aluminum chassis. Thread Size: M1.4*0.3 Outside diameter: ø2.85mm Carbon steel + Plating Quantity: 7 Overall Length: 1.8mm These inserts are same as shown on Slide #10 The insert circled in Green: match with screws shown on Slide #13. Other inserts : match with Philips screws shown on Slide #6. Thread Size: M1.4*0.3 Outside diameter. Ø2.2 mm Brass Quantity: 1 Overall Length:1.8mm www.pemnet.com 14
Step 11: Disassembly is done Google Pixel Teardown www.pemnet.com 15
Fastener Summary www.pemnet.com 16
Fasteners Summary Total 18 pieces fasteners & hardware used in the Google Pixel rigidity and makes the machines is easy to take apart with everything organized in such a way. All of the fasteners in this Google Pixel are tabulated as the following: Item Fastener & Hardware Qty. Driver Overall Length Finish Material Slide No. 1 Torx Screws_M1.4x0.3 3 T-5 4.02 Bright Zinc Carbon steel #5, #6 2 3 Philips Screws_M1.4x0.3 Philips Screws_M1.4x0.3 11 PH 00 3.75 Bright Zinc Carbon steel #6 3 PH 00 2.33 Bright Zinc Carbon steel #8, #13 4 Inserts 16 / 1.8 Plating Carbon steel #10, #14 5 Brass Inserts 1 / 1.8 / Brass #14 6 Metal-press-plate 1 / / / Stainless #5 www.pemnet.com 17
Fasteners Summary Thread Size: M1.4*0.3 Recess: T-5 Round head ø2.98-3.01 mm Head thickness: 0.52 mm Carbon steel + Bright Zinc Quantity: 3 Overall Length: 4.02 mm Nylon locking patch Reference slide #5, #6 Metal-press-plate Thick: 0.3mm Stainless Quantity:1 Reference slide #5 Thread Size: M1.4*0.3 Recess: PH 00 Round head ø1.98-2.01 mm Head thickness: 0.33 mm Carbon steel + Black Zinc Quantity: 11 Overall Length: 3.75 mm Nylon locking patch Reference slide #6 Thread Size: M1.4*0.3 Recess: PH 00 Round head ø2.9 mm Head thickness: 0.43 mm Carbon steel + Bright Zinc Quantity: 3 Overall Length: 2.33 mm Nylon locking patch Reference slide #8, #13 www.pemnet.com 18
Fasteners Summary Thread Size: M1.4*0.3 Outside diameter: ø2.85mm Carbon steel + Plating Quantity: 7 Overall Length: 1.8mm Reference slide #10, #14 Thread Size: M1.4*0.3 O.D. Ø2.2 mm Brass Quantity: 1 Overall Length:1.8mm Reference slide #14 www.pemnet.com 19
Alternate Solutions PennEngineering recommendations of alternate hardware and cost savings opportunities. www.pemnet.com 20
Alternate Solutions Micro Screws alternate solution: PennEngineering has license with Microstix, Torx and Torx Plus driver and self-tapping thread patent such as TAPTITE, FASTITE, REMFORM and REMFORM F with different design solutions. All of the screws used in this machine can be directly replaced with PEM relevant screws. Refer to slides #5, #6, #8, #13, www.pemnet.com 21
Alternate Solutions Rotary install SO alternate solution: In this situation rotary installed standoffs may be used instead of carbon steel inserts. This removes the need to cast a part with extra height for mounting holes for insert installation. It also reduces the raw material needed for the chassis and simplifies the process for chassis production. Refer to slides #10, #14 Rotary Installation Replace weld standoffs or cold press-in inserts with rotary installed standoffs. Uses torque and reduced axial force to prevent damage to cosmetic surfaces. Micro fasteners install into material as thin as 0.5mm. No protrusion above the top surface of the panel. Requires a blind milled hole. www.pemnet.com 22
Alternate Solutions SI inserts alternate solution: PennEngineering can provide different sized brass and aluminum inserts to meet the application requirement. The threaded inserts found in this device can be replaced with MSIB inserts. micropem aluminum SI series inserts provide an effective method for reducing product weight and in a variety of designs and sizes are recommended to replace the brass inserts. Refer to slides #14 www.pemnet.com 23
Alternate Solutions Inserts for casting alternate solution: PennEngineering can provide different sized inserts for casting to meet the application requirement. PEM does have a previous successful application case and product for this type of insert. Refer to slides #10, #14, www.pemnet.com 24
Alternate Solutions TackSert alternate solution : All of the screws threaded into brass inserts in this machine can be totally replaced with micropem TackSert. The TackSert pins can permanently install into plastic materials and eliminate cost of brass inserts at the same time. Installation will be faster by changing to press-in over turn-in. The TackSert can eliminate the need for loose hardware, while providing a permanent solution. Refer to slides #14, www.pemnet.com 25
Conclusions and Summary The Google Pixel is an intelligently designed device. The plastic part is mold on the Aluminum alloy chassis and total 16 pieces fasteners are used. Lots of parts are connected with adhesive. PennEngineering offered micropem FASTENERS can be fastening solutions to directly and/or indirectly replace the joining used in this device within our current manufacturing facilities. In addition to direct replacement, perhaps some manufacturing and material substitution for functional and cost improvement, some alternate fastening suggestions are presented for specific situations. All screws can be quoted as direct PEM replacements. All screws and brass inserts can be quoted as direct PEM TackSert. The brass insert can be quoted as direct PEM brass insert replacements or inserts made from Aluminum for weight saving. All carbon inserts pressed in casting can be quoted as direct PEM nuts for casting. All carbon inserts pressed in casting can be replaced with rotary installed standoffs for faster installation time and reduce the process cost of chassis. Additional savings could be realized by using micropem FASTENERS being fed, positioned and installed automatically in an installation system to install fittings into the components in this machine. www.pemnet.com 26