Compared with the traditional silicone button, the film button has a better hand feeling and a longer life, which can indirectly improve the production efficiency of various types of switches using the conductive film. It is used as a switch on PCBs, PET and other circuit boards, and plays an important tactile switch between the user and the instrument.

The contact point of the film is located on the conductive part of the PCB (mostly above the gold finger on the circuit board). When the button is pressed by the external force, the center point of the contact is concave and contacts the line on the PCB, thereby The loop is formed, the current is passed, and the entire product is working properly.