Details of Flex & Rigid Membrane Switches

The circuit of membrane switches can be flex and rigid. It depends on the customer end application and also related to the cost budget and other considerations. For example, life, resistance, connection type on main board etc.

For the flex circuit membrane switches, there are two types. They are silver printed PET circuit and copper etched FPC circuit. Their difference and advantages&disadvantages listed bellow:

Usually if the membrane switches need assembled many LEDs, then we suggest to use FPC circuit, it can get more stable LED soldering quality. For the normal application the PET circuit is enough, which is more economical. In addition if the conductor pitch is 0.5mm, although we also can print it, but we still suggest to use FPC circuit. Because of that 0.5mm pitch is too small and it is easy to occur the short circuit problem.

For the Rigid circuit membrane switches, the circuit is rigid printed circuit board. The material of rigid PCB is usually FR4 and Copper. By this type of membrane switch, the connector usually is the SMD connector(sometimes also can be straight through connector). For some application which need very stiff capability, then use PCB circuit membrane switch.

Our main business and products include designing and manufacturing various kinds of membrane switches, membrane keypads, graphic overlays, membrane circuits, backlighting membrane keypads like the LED backlighting membrane switches, EL backlighting membrane switches, LGF backlighting membrane switches, capacitive membrane switches, capacitive sensing circuits, printed touch sensors, capacitive font panels and nameplates, labels, PCBA, prototype to middle volume metal + plastic + electronics turnkey assembly projects.

LuphiTouch certified by ISO9001, ISO14001, ISO13485 and ISO45001. We are the first ISO13485 medical quality system certified membrane switch factory in China. Our products and services are widely used on medical, healthcare, household electrical appliances, industry control, vehicles, marine, aerospace, networking, telecommunication, consumer electronics, measuring instruments, military and defence etc. fields.

Our engineers have more than 15 years experiences in membrane switch industry. We can provide from mechanical design, PCBA development, backlighting solution, singlechip program development to molding, manufacturing and final function test jigs designing & making, test program development such kind of one-stop total solutions service!

80% customers of LuphiTouch are from USA, Australia, UK, Germany, Austria, France, Italy, Belgium, Sweden, Newzealand etc. countries and areas. We've established good cooperation relations with them already.