Patent ID: 6469415
Filing Date: 2002-10-22
Classification: H02N

Abstract:
A balanced microdevice subjectable to external forces comprising a substrate, at least one comb drive assembly having first and second comb drive members, the first comb drive member being mounted on the substrate and the second comb drive member overlying the substrate, at least one spring member having a first end portion coupled to the substrate and a second end portion coupled to the second comb drive member, the first comb drive member having a plurality of spaced-apart first comb drive fingers and the second comb drive member having a plurality of spaced-apart second comb drive fingers, the second comb drive member being movable in a direction of travel between a first position to a second position in which the first and second comb drive fingers are substantially interdigitated, a counterbalance carried by the substrate and coupled to the second comb drive member for inhibiting undesirable movement of the second comb drive member in the direction of travel in response to the external forces.