FPC Copper Flex Membrane Switches

FPC membrane switch panels can be manufactured using polyester or polyimide (Kapton) as the base material, depending on your specific interface requirements. An ultra-thin copper sheet is laminated to the flexible film substrate, then chemically etched to form precise copper traces. The etching process involves chemical agents and is therefore less environmentally friendly; it is also more costly compared to screen-printed silver traces used in Silver Flex membrane switches.

• Single-sided: Conductive copper traces on one side of the film substrate
• Double-sided: Conductive copper traces on both sides of the film substrate
• Rigid-Flex: A laminated combination of a Copper Flex switch with a rigid FR4 PCB membrane switch

FPC membrane switches are ideal for compact designs requiring dense circuit patterns or constrained trace routing. This design delivers the complex circuit capabilities of an FR4 rigid printed circuit board while retaining the flexibility of a membrane switch. Copper Flex keypads also support hard soldering of active and passive components, making them an excellent choice for high-vibration, high-reliability environments.

• Available in single-sided and double-sided Copper Flex designs
• Lower electrical resistance and higher conductivity than traditional Silver Flex membrane switches
• Superior capability for tight trace routing
• Maintains the same thin profile and flexibility as Silver Flex membrane switches
• Plating options: tin-lead, nickel, or gold
• Tactile and non-tactile versions with metal or polyester tactile domes
• Pillow or rim-embossed graphic overlays
• LEDs and other components can be soldered for enhanced robustness
• Graphic overlays available via digital printing, screen printing, or a combination of both
• Graphic overlays may include transparent and tinted display windows, selective textures, and UV hardcoat surface finishes
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