Patent ID: 6348999
Filing Date: 2002-02-19
Classification: B29C,B29D,B33Y,G02B,G03H,Y10T

Abstract:
A composite micro relief element for use in micro-optical, micro-fluidic, micro-electrical, micro mechanical or micro-chemical applications which comprises(a) a first layer of a first substrate, the first layer having a receptive surface; and (b) a layer of a relief forming polymer which is retained on the receptive surface of the first layer, wherein the layer of relief forming polymer comprises overlay and at least one relief feature portions; wherein the overlay is affixed to the receptive surface, serves to planarise the receptive surface, and has a thickness variation less than +/âˆ’0.75 &mgr;m; and wherein the least one relief feature protrudes above the overlay.