Patent ID: 6764881
Filing Date: 2004-07-20
Classification: B81B,G02B

Abstract:
A method for fabricating a micromachined apparatus comprising the steps of:providing a wafer with a metallized obverse surface; etching an array of a cavity and hinges in said wafer thus forming an array of a conductive handle and a mirror with metallization on an obverse surface; releasing oxide holding the mirror; metallizing walls of the cavity and a reverse surface of said mirror; providing a ceramic structure of stacked metallization and insulative ceramic layers; providing first and second electrodes on an obverse surface of said ceramic structure, said electrodes being disposed to confront said mirror; electrically connecting the electrodes to a driver on a reverse side of the ceramic structure via traces through said ceramic structure; providing at least one bonding element extending from the obverse side of the ceramic structure; juxtaposing said wafer and said ceramic structure, said at least one mounting pin extending through an alignment hole in said wafer, said alignment hole having lateral spacing to permit relative motion in x and y; and providing a constraint on said bonding element to constrain relative motion of said ceramic and said wafer along a z-axis.