Patent ID: 7235349
Filing Date: 2007-06-26
Classification: G03F,Y10S

Abstract:
1. A process of forming photoresist patterns comprising: (a) forming a bottom anti-reflective coating film by coating and baking a bottom anti-reflective coating composition on an underlying layer; (b) forming a photoresist film by coating and baking a photoresist composition on the bottom anti-reflective coating film; (c) exposing the resultant structure; (d) baking the resultant structure; and (e) developing the resultant structure to obtain ultra fine patterns, wherein the bottom anti-reflective coating composition comprises a polyvinylphenol base resin of Formula 2, a curing agent compound of Formula 1, a solvent, and an acid generator; wherein R 1 and R 2 are linear or branched C 1 -C 10 alkyl, and R 3 is hydrogen or methyl;