Patent ID: 6468714
Filing Date: 2002-10-22
Classification: G03F,Y10S

Abstract:
A negative radiation-sensitive resin composition comprising:(A) an alkali-soluble resin containing at least one copolymer selected from the group consisting of a hydroxystyrene/styrene copolymer having hydroxystyrene units in a content of from 65 mol % to 90 molt % and a hydroxystyrene/&agr;-methylstyrene copolymer having hydroxystyrene units in a content of from 65 mol % to 90 mol %; (B) a radiation-sensitive acid-generating agent containing a hydroxyl group-containing onium salt compound; and (C) a cross-linking agent containing an N-(alkoxymethyl)glycoluril compound, wherein the component-(B) radiaton-sensitive acid-generating agent is a compound represented by the following general formula (I) or (II): wherein R1 to R3 may be the same or different and each represent a hydroxyl group, a hydrogen atom, a halogen atom, an alkoxyl group, an alkyl group or a haloalkyl group, provided that at least one of R1, R2 and R3 is a hydroxyl group, and Xâˆ’represents a sulfonate anion:wherein R4 and R5 may be the same or different and each represent a hydroxyl group, a hydrogen atom, a halogen atom, an alkoxyl group, an alkyl group or a haloalkyl group, provided that at least one of R4 and R5 is a hydroxyl group; and Xâˆ’represents a sulfonate anion.