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Keypad Membrane Single-sided flexible PCBs FPC Polyimide PCB Board
This is a type of flexible printed circuit for the application of keypad membrane. It’s a single layer FPC at 0.1mm thick. The base laminate is from ITEQ, It’s fabricated per IPC 6012 Class 2 using supplied Gerber data. Polyimide stiffner is applied on the inserting head.
Flexible circuits are also used extensively in other applications and industries including:
Communications
Consumer Electronics
Automotive
Medical
Industrial
Aerospace
Military
Transportation
Parameter and data sheet
| Max. Size of Flexible PCB | 600*400mm | 
| Max. Number of Layers | 8 | 
| Board Type | Flexible PCB | 
| Board Thickness | 0.15mm | 
| Board Material | PET 25µm | 
| Board Material Supplier | Shengyi | 
| Tg Value of Board Material | 60℃ | 
| PTH Cu thickness | ≥20 µm | 
| Inner Iayer Cu thicknes | N/A | 
| Surface Cu thickness | 35 µm | 
| Coverlay Colour | Yellow Top / White Bottom | 
| Number of Coverlay | 2 | 
| Thickness of Coverlay | 25 µm | 
| Stiffener Material | Polyimide | 
| Stiffener Thickness | 0.2mm | 
| Type of Silkscreen Ink | IJR-4000 MW300 | 
| Supplier of Silkscreen | TAIYO | 
| Color of Silkscreen | Black | 
| Number of Silkscreen | 1 | 
| Peeling test of Coverlay | No peelable | 
| Legend Adhesion | 3M 90℃ No peeling after Min. 3 times test | 
| Surface Finish | Immersion Gold | 
| Thickness of Nickle/Gold | Au: 0.03µm(Min.); Ni 2-4µm | 
| RoHS Required | Yes | 
| Famability | 94-V0 | 
| Thermal Shock Test | Pass, -25℃±125℃, 1000 cycles. | 
| Thermal Stress | Pass, 300±5℃,10 seconds, 3 cycles. No delamination, no blistering. | 
| Function | 100% Pass electrical test | 
| Workmanship | Compliance with IPC-A-600H & IPC-6013C Class 2 | 
Flexible PCB / FPCB Applications
FPCBs are used widely in everyday technology and electronics in addition to high-end, complex completed components. Two of the most prominent examples of flexible circuit usage is in modern portable electronics, devices, hard disk drives and desktop printers.
FPCB Photo
