Patent ID: 7767379
Filing Date: 2010-08-03
Classification: C08F,G03F,Y10S

Abstract:
1. A positive resist composition, comprising a resin component (A) which displays increased solubility in an alkali developing solution under action of acid; and an acid generator component (B) which generates an acid upon exposure, wherein the resin component (A) comprises a polymer compound (A1) which comprises a structural unit (a0) represented by a general formula (a0-1) shown below, and a structural unit (a1) derived from an acrylate ester containing an acid dissociable, dissolution inhibiting group:  (in the formula (a0-1), R represents a hydrogen atom, a lower alkyl group, or a halogenated lower alkyl group; two of R′ each independently represents a hydrogen atom, a lower alkyl group, or an alkoxy group of 1 to 5 carbon atoms; and X represents an alkylene group of 1 to 5 carbon atoms, an oxygen atom, or a sulfur atom.).