High Tech Decals: Membrane Switches
Southern Coating can handle your special switches.
A membrane switch is an electrical switch for turning a circuit on and off. Our membrane switch is a circuit printed using special conductive ink for screen printing.
Our membrane switches typically have 4 or more layers. The top layer of a membrane switch is the graphic interface between the user and the machine. The other critical layer is a printed circuit. This can also be a flex circuit made of copper and polyimide material. The layers are normally assembled using pressure sensitive adhesives although inexpensive designs can be held together through other mechanical means such as a keyboard housing. Contact between two traces can be made through a printed shorting pad or through a metal dome that stands on legs.
Classic applications includes microwave oven panel, air conditioner control panel, TV remote control etc. Tactile feedback of keys can be provided by embossing the top PET layer or embedding metal snap domes, polyester domes or forming the graphic layer.
Benefits of membrane switches can include ease of cleaning, sealing ability and their low profile.
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