How do membrane-switches work?

Membrane switches are comprised of several layers of processed materials. AGE Nameplate uses both digital and screen print processes to produce brilliant graphic overlays utilizing simple or complex designs provided by the OEM. Embossed domes enable buttons to function mechanically as actuation points. Beneath the graphic layer is the circuit layer: Special high-quality inks that contain metallic compounds, such as carbon or silver, are applied to either rigid or flexible substrates using a silk-screen process. These inks carry electrical signals from the actuation point to a wiring harness, and eventually to an application processor in the main PCB of the OEM product.

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