Patent ID: 7142087
Filing Date: 2006-11-28
Classification: F42C,H01H

Abstract:
1. A micro-electrical-mechanical-switch, MEMS, monolithic semiconductor device comprising a semiconductor wafer, a first dielectric layer formed on the semiconductor wafer, and a second semiconductor layer formed on the first layer; a first latching movable shuttle formed in the second layer and having the first layer removed under the first shuttle, the first shuttle being moved in a first direction relative to the wafer in response to a predetermined acceleration of the MEMS device in a direction opposite to the first direction so as to change an operating condition of the MEMS device from a first switch state to an intermediate switch state; a second latching moveable shuttle formed within the first shuttle, the second shuttle being moved in a second direction relative to the first shuttle in response to a thermally activated force so as to change the operating state of the MEMS device from the intermediate switch state to a second switch state; and wherein in the second switch state an opening in the second shuttle aligns with an opening in the wafer to enable an optical signal to pass through the aligned openings.