Patent ID: 7999201
Filing Date: 2011-08-16
Classification: G01P,H01H

Abstract:
1. A MEMS G-switch comprising: a silicon substrate; a proof mass; one or more moveable driving stages attached to said proof mass; a plurality of mechanical springs each having one end attached to said substrate and another end attached to said one or more moveable driving stages; one or more fixed driving stages attached to said substrate; bumps attached on said moveable driving stages or said fixed driving stages; and a voltage control circuit applying voltage between said moveable driving stages and said fixed driving stages wherein said G-switch is turned off when it is in an orientation perpendicular to the direction of gravity and said one or more moveable driving stages deviate from said one or more fixed driving stages, and wherein said G-switch is turned on when it is in an orientation parallel to the direction of gravity and the gravity force of said proof mass pulls said one or more moveable driving stages to collapse onto said one or more fixed driving stages.