Patent ID: 6261422
Filing Date: 2001-07-17
Classification: C23C,F28F

Abstract:
A process for production of a hollow coating applied onto a substrate surface, said coating having a pre-determined design of hollows, which process includes preparation of said substrate surface for application of said coating and at least one cycle consisting of the following steps (a) and (b):(a) modeling said hollows by formation of auxiliary elements on said substrate surface, or, if said cycle is repeated, modeling said hollows by formation of auxiliary elements onto the surface of a previous layer of said coating; said auxiliary elements modeling dimensions, shapes, and location of said hollows relative to said substrate;(b) application of a layer of pre-determined thickness of desired material of said coating onto an obtained surface; said obtained surface comprising said auxiliary elements in combination with open areas of said substrate not covered by said auxiliary elements, or, if said cycle is repeated, said obtained surface comprising said auxiliary elements in combination with open areas of said previous layer of said coating not covered by said auxiliary elements;and extraction of said auxiliary elements after a pre-determined number of repetitions of said cycle.