PLATE KEY BOARD'S SWITCH

摘要

The switch comprises a multilayer flexible sheet with a first and second surface with electrical circuit paths and several switch contacts deposited on the first surface. A second flexible sheet with electrical paths and switch contacts is deposited on the first surface. A spacer sheet with a hole is positioned between the two flexible sheets and has the hole aligned with portions of the electrical circuit on each of the sheets to form a passage through which the circuits may contact each other. A zone of adhesive interposed between the spacer and each of the flexible sheets form a multilayer structure with each of the spacer and sheets restricted from movement with respect to each other in the plane of the spacer sheet.