Patent ID: 7709179
Filing Date: 2010-05-04
Classification: G03F,Y10S

Abstract:
1. A negative resist composition, comprising: (A) an alkali soluble resin component; (B) an acid generator component which generates an acid upon exposure; and (C) a crosslinking agent component, wherein the component (A) contains an alkali soluble resin component (A1) having a structural unit (a1) containing an alicyclic group having a fluorinated hydroxyalkyl group, a structural unit (a2) derived from an acrylic acid ester and containing a hydroxyl group-containing alicyclic group and a structural unit (a3) which is derived from acrylic acid, does not have a ring structure, and has an alcoholic hydroxyl group at a side chain; and wherein the component (B) contains an acid generator (B1) expressed by a general formula (B1) below: (wherein R 51 represents a straight chain, branched chain or cyclic alkyl group or a fluorinated alkyl group; R 52 represents a hydrogen atom, hydroxyl group, halogen atom, straight chain, branched chain or cyclic alkyl group, straight chain or branched chain halogenated alkyl group, or straight chain or branched chain alkoxy group; R 53 represents an aryl group which may have a substituent; and n represents an integer of 1 to 3).