Membrane keyboard and method of formation thereof

Details Membrane keyboard and method of formation thereof Membrane keyboard and method of formation thereof

H - Electricity

01

H

26/120, 306/305

H01H 13/02 (2006.01) H01H 13/70 (2006.01) H01H 13/702 (2006.01)

Patent

CA 1173480

-13- MEMBRANE KEYBOARD AND METHOD OF FORMATION THEREOF Abstract of the Disclosure A membrane keyboard and method of formation thereof is presented in which the spacing and insulation between fixed and movable circuit layers is achieved by a dielectric material screened or otherwise applied to one of the circuit layers in a predetermined pattern. The dielectric pattern has openings to permit electrical contact between layers, and the dielectric pattern includes a discontinuous pattern of dielectric material on at least one of the contact elements to maintain separation between the contacts while still permitting actuation of the device.

385050

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