The design principle of a membrane key switch is a flat switch that uses multiple layers of printed conductive circuit patterns, as well as several layers of materials with other functions, to form a multilayer film combination. On each formed key, when an external force is applied from the upper film to the lower layer, the upper and lower lines of the key will be contacted and conducted to produce a preset function, just like the switching principle of general electronic products. The only difference is that this product has the advantage of being thin and light and can be widely used in various shapes and sizes. It can also be used with electronic parts like metal domes and LEDs to enrich touch and visual functions. The most important thing is that it can meet the various product design requirements of many customers.
