Patent ID: 7097778
Filing Date: 2006-08-29
Classification: G02B

Abstract:
1. A process for fabricating micro-optical iens, comprising following steps: step 1, providing a substrate consisting at least a substrate and a dielectric layer grown on the substrate; step step 3, removing downwardly a first thickness from said etching region, and remaining a second thickness, to form a wall post structure on the surface of said dielectric layer; step 4, applying a polymeric film over said substrate having said wall post structure thereon; step 5, defining a volume of said micro-lens on said polymeric film; step 6, performing an etching process to remove the dielectric layer beneath said polymeric film, such that said polymeric film becomes adhering onto both sides of said wall post structure; step 7, removing the polymeric film from a top of said wall post structure such that the polymeric films on both sides of said wall post structure are isolated completely from each other; and step 8, subjecting said polymeric film adhered separately on both sides of said wall post structure to a baking such that said polymeric films cohere into a shape of piano-convex lens, and hence there is formed a biconvex micro-lens.