Patent ID: 6509670
Filing Date: 2003-01-21
Classification: B82Y,G11B,H02N,Y10S

Abstract:
A single stage microactuator for multidimensional actuation, comprising:a substrate; a fixed plate electrode formed at the center of the substrate; a rectangular stage having first and second sides which are perpendicular to each other, the rectangular stage being located above the fixed plate electrode; a plurality of drive frame parts arranged close to each of the first and second sides of the stage, each of the drive frame parts having a plurality of drive frames parallel to one another and perpendicular to the sides of the rectangular stage; first spring parts each for connecting the first and second sides of the stages and the drive frame parts, each of the first spring parts having a plurality of spring members extending parallel to the first and second sides of the stage and a plurality of spring holding members for holding the spring members; a plurality of fixed frame parts arranged on each of the first and second sides of the stage, each of the fixed frame parts having a plurality of parallel fixed frames alternately arranged with the drive frames of the drive frame parts; drive comb electrodes extending parallel to one another and parallel to the first or second sides of the stage, from the drive frames of each of the drive frame parts; fixed comb electrodes extending parallel to one another from the fixed frames of each of the fixed frame parts and being interdigitated with the drive comb electrodes; and second spring parts each for supporting the drive frame parts with respect to the substrate and urging the drive frame parts in the direction of the drive comb electrodes by its elastic bias, each of the second spring parts having a plurality of spring members extending parallel to the drive frames of the drive frame parts and a plurality of spring holding members for holding the spring members.