Patent ID: 6392178
Filing Date: 2002-05-21
Classification: H01H

Abstract:
A membrane switch, comprising:a first flexible insulating substrate; a first contact pattern formed on said first flexible insulating substrate; a second flexible insulating substrate; a second contact pattern formed on said second flexible insulating substrate, said first contact pattern facing said second contact pattern; a spacer member disposed between said first flexible insulating substrate and said second flexible insulating substrate, said spacer layer having an opening at an area in which said first contact pattern and said second contact pattern face each other; wiring patterns conductive-connected to corresponding contact patterns formed on at least one of said first flexible insulating substrate and said second flexible insulating substrate, said first contact pattern and said second contact pattern being conductive-connected by pressure applied between contacts comprising said first contact pattern and said second contact pattern, wherein said wiring patterns are conductive layers containing thermoplastic resin that includes a mixture of conductive powder and thermoplastic binder resin, and at least one layer of said second contact pattern has a conductive layer containing thermosetting resin that includes a mixture of conductive powder and thermosetting binder resin.