Self-contained sealed film lamination printed with conductive inks that form trace paths for electrical currents. Primarily composed of pressure sensitive polycarbonate and/or polyester films designed to replace traditional glass-type switches.
a thin normally open, momentarily closed, flexible electronic switch
a very thin low voltage switching device that continues to replace the older mechanical push button type of switch
In its most basic form, a membrane switch is composed of three layers: (1) A shorting pad (a film (or membrane) containing a contact (or conductor) in specific areas). (2) A spacer layer with holes that are aligned with the shorting pad contacts. (3) A printed circuit board (PCB). These three layers are laminated together to form small, low-profile switches (or buttons) covered with a film to provide a smooth and/or slightly bubbled feel. The definition of membrane switch is usually expanded to include a graphic overlay laminated to the top of the three-ply switch. Common examples of membrane switches can be found on many microwave ovens and dishwashers.
Self-contained sealed film lamination, usually screen printed with conductive inks that provide trace paths for electrical currents.
A momentary switch device in which at least one contact is on, or made of, a flexible substrate. As a momentary switch, it must contain a Membrane Layer and a Static Layer. Other layers for decoration, backlighting, adhesive, tactile response and rigid support are all optional.
A membrane switch is an electrical switch for turning on and off a circuit. It differs from a mechanical switch, which is usually made of copper and plastic parts: a membrane switch is a circuit printed on a PET or ITO. The ink used for silk screening printing is usually copper / silver / graphite filled and therefore conductive.
