Patent ID: 6297069
Filing Date: 2001-10-02
Classification: B81C

Abstract:
A method for applying a layer of material on a surface of a micro-electronic substrate, wherein said method comprises the steps of:providing a micro-electronic substrate having first and second surfaces and defining a cavity opening through the second surface, wherein the micro-electronic substrate includes a membrane proximate to the first surface and overlying the cavity;applying a supporting material within the cavity of said micro-electronic substrate and about at least a portion of the perimeter of the micro-electronic substrate, wherein said applying step comprises applying the supporting material such that a surface of the supporting material is coplanar with the first surface of the micro-electronic substrate; anddepositing the layer of material on said first surface of said micro-electronic substrate and at least a portion of the surface of the supporting material that is coplanar with the first surface of the micro-electronic substrate such that said layer of material substantially covers said first surface of said micro-electronic substrate and edge portions of the layer of material reside upon said supporting material, thereby permitting the layer of material substantially covering the first surface of the substrate to have a planar surface.