The membrane switch, also known as the flexible circuit switch, is a circuit layer using a flexible membrane switch, and a polyester film (PET) with good electrical properties is used as a carrier for the circuit pattern of the switch circuit. Due to the properties of the polyester film, the membrane switch has good insulation, heat resistance, folding resistance and high resilience. The pattern of the switch circuit, including the connection of the switch and its lead-out line, is printed with low-resistance, conductive paint cured under low temperature conditions. It is an important part of the electrical controller and has a wide range of applications, such as:

1. Instrumentation: measuring instruments, analytical instruments, medical instruments, communication instruments, etc.
2. Electromechanical products: CNC machine tools, electronic scales, robots, treadmills, printing machinery, etc.
3. Computer: operating keyboard, printer, plotter, scanner, etc.
4. Office equipment: telephone, fax machine, copier, translation machine, computer, learning machine, etc.
5. Electronic toys: electronic targets, keyboards, game consoles, etc.
6. Household appliances: remote control, electronic locks, clocks, microwave ovens, induction cookers, rice cookers, air conditioners, washing machines, refrigerators, electric fans, audio and video equipment.