Wafer Thin Type Membrane Keypad has a second layer that is a polyester film which acts as a spacer with cut outs for the switch areas on bottom. The Keypad is a wafer thin, four layered component. The Keypad has a top which is a graphic overlay layer and conductive pads printed under the surface. The Wafer Thin Type Membrane Keypad has a fourth layer which is an adhesive layer to stick keypad on the required surface.
