Patent ID: 6284560
Filing Date: 2001-09-04
Classification: B81C

Abstract:
A method for producing co-planar surface areas for micro-electromechanical systems structures comprising the steps of:a) providing a first layer with at least two recesses over a substrate;b) depositing a second layer over the entire area of the first layer wherein the second layer has a thickness greater than the depth of the recesses and is composed of a differing material to the first layer;c) removing the second layer completely beyond the area of at least one recess;d) removing the remaining portion of the second layer until the second layer is coplanar with the first layer; ande) repeating step b) trough d) with differing material until all the recesses provided by the first layer are coplanar with the first layer fro producing co-planar areas for micro-electromechanical systems structures.