Patent ID: 8432239
Filing Date: 2013-04-30
Classification: B81B,H01H

Abstract:
1. A micro-electromechanical system switch, comprising: a substrate; a plurality of actuating electrodes formed in said substrate, each actuating electrode being activatable; a cantilever beam having a first end and a second end, said first end of said cantilever beam being anchored to said substrate, said second end of said cantilever beam not being anchored to said substrate; a plurality of stops formed on said cantilever beam to engage said substrate between said plurality of actuating electrodes, said plurality of stops being a plurality of solid raised areas; and a contact area formed in said substrate and located to engage said second end of said cantilever beam to form an electrical switch; one of said plurality of stops being formed on said cantilever beam so as to provide contact to said contact area; said contact area having a metal contact surface, the metal contact surface having a smoothness of less than 1 nm rms; said cantilever beam being constructed of a first layer of titanium formed upon a second layer of tungsten, which is formed upon a third layer of titanium.