Different Types Of Medical FPC Membrane Switch 

GRAPHIC OVERLAY MEMBRANE KEY SWITCH CUSTOMIZATION   The membrane switch is usually composed of six parts: panel, surface glue, upper circuit (shrapnel fixed layer), isolation layer, lower circuit and back glue. Which material is selected for each layer should be based on user requirements, product characteristics and use environment. Selected at the beginning of engineering design. The feel of the membrane switch often depends on the three factors of the size, strength and stroke of the shrapnel (the dome) (the design of the isolation layer and the ventilation groove of the surface glue also affects the feel). The shrapnel are commonly used in stainless steel, nickel-plated, gold-plated Of the three types, membrane switches are usually nickel-plated, and gold-plated when the keys are particularly sensitive and the loop resistance is required to be very stable.   Membrane switch is an operating system that integrates key functions, indicating elements and instr…