Tiantai Electronics is a leading China fpc membrane switch with metal dome manufacturer and supplier. FPC membrane switch with metal dome is short of copper Flex membrane switch can be produced using polyester or polyimide (Kapton) as the base material, depending on your interface requirements. FPC membrane switch with metal dome using a very thin sheet of copper is laminated to the flexible film substrate then chemically etched away, leaving copper traces. The etching process is not environmentally friendly due to the chemicals used, and FPC membrane switch with metal dome is also more expensive than screen printing the silver traces used in Silver Flex membrane switches.
FPC membrane switch with metal dome can be constructed as:
Single-sided – conductive traces one side of the film substrate
Double-sided – conductive traces both sides of the film substrate
Multi-Layer flex – a laminated “sandwich” of numerous layers with conductive traces
Rigid-Flex – a laminated combination of a FPC membrane switch with metal dome with a rigid FR4 PCB membrane switch