Patent ID: 7282324
Filing Date: 2007-10-16
Classification: G03F

Abstract:
1. A method of forming a metal pattern, comprising the steps of: applying a photoresist composition to a substrate, said photoresist composition comprising one or more cationically polymerizable resin components (A) bearing in their structures epoxide groups and carboxylic acid groups wherein resin component A is described by the following Formula 1; wherein Z is H or —COR″COOH; and wherein groups R, R′, and R″ are individually selected from the group consisting of monomeric, oligomeric or polymeric organic bridging groups, with one or more photoacid generator compounds (B), and one or more solvents (C) evaporating most of said solvents by heating to form a film of said photoresist composition on said substrate; irradiating said film through a mask with active rays to form irradiated regions; heating said irradiated regions to affect crosslinking; developing said film to form an image of hardened photoresist; forming a metal pattern on said substrate by electrolytic or non-electrolytic plating, said metal pattern having dimensions defined by said image of said hardened photoresist; and removing said hardened photoresist to produce said metal pattern.