Patent ID: 8283105
Filing Date: 2012-10-09
Classification: G03F

Abstract:
1. A positive resist composition comprising a base component (A) which exhibits increased solubility in an alkali developing solution under action of acid and an acid-generator component (B) which generates acid upon exposure, the base component (A) comprising a polymeric compound (A1) having an acid dissociable, dissolution inhibiting group in the structure thereof and comprising a structural unit (a0) represented by general formula (a0-1) shown below, and the acid-generator component (B) comprising an acid generator (B1) comprised of a compound represented by general formula (b1-1) shown below: wherein R represents a hydrogen atom, an alkyl group of 1 to 5 carbon atoms or a halogenated alkyl group of 1 to 5 carbon atoms; R wherein R 0 represents a hydrocarbon group of 1 to 12 carbon atoms which may have a substituent, with the provision that the carbon atom adjacent to the sulfur atom within the —SO 3 − group has no fluorine atom bonded thereto; and Z + represents an organic cation.