Importance

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Abstract

A tactile membrane switch assembly that includes at least one switch site having inner and outer contacts and a snap dome switch wherein the assembly includes a flexible substrate of electrically insulating material having a plurality of alternating layers of dielectric ink and electrically conductive ink patterned to define the inner and outer contacts and suitable conductive runs. A top layer of wear resistant carbon ink is applied to the outer contact and the snap acting dome switch which is conductive is mounted onto the switch site so that it peripherally engages the outer contact. A dome seal is applied over the snap dome switch to hold it in place and to seal the circuitry from contamination.

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First Claim