Patent ID: 6444408
Filing Date: 2002-09-03
Classification: G03F,G11B

Abstract:
A process for generating a bilayer resist image on a substrate comprising:(a) coating a substrate with an organic underlayer; (b) coating the organic underlayer with a top layer comprising: (i) a radiation sensitive acid generator and (ii) a polymer polymerized from a silicon-containing monomer that is acid-labile and a silicon-containing monomer that is acid-stable, and the acid-stable the silicon monomers containing an ethylenically unsaturated group, monomer has a silicon atom separated from an ester oxygen by one methylene carbon atom, or is void of any ester oxygen linking the silicon atom; (c) imagewise exposing the top layer to radiation; (d) developing the image in the top layer; and (e) transferring the image through the organic underlayer to the substrate.