Patent ID: 6821718
Filing Date: 2004-11-23
Classification: G03F,Y10S

Abstract:
A method of forming a patterned material layer on a substrate, the method comprising:(a) providing a substrate having a material layer on a surface, (b) providing a layer of resist over said material layer, said resist comprising: (i) a silicon-containing polymer with pendant fused moieties selected from the group consisting of fused aliphatic moieties, homocyclic fused aromatic moieties, and heterocyclic fused aromatic moieties and sites for reaction with a crosslinking agent, (ii) an acid-sensitive crosslinking agent, and (iii) a radiation-sensitive acid generator; (c) patternwise exposing the resist layer to imaging radiation, (d) removing portions of the resist layer not exposed in step (c) to create spaces in said resist layer corresponding to said pattern, (e) removing portions of the material layer at said spaces formed in step (d).