In the operating system of the membrane switch electronic product, some switches are not only large in size, but also have a single function, and the appearance type is limited by commercially available products, and it is difficult to meet the needs of the development of electronic products in the direction of multifunctional, miniaturization, intensive, and intelligent. A separate product processed by screen printing technology, the membrane switch came into being, and it provided timely assistance to the development of the electronics industry as the fourth generation of switching components.