Patent ID: 9606433
Date: 2017-03-28
CPC Classifications: G03F

Claim:
1. A resist composition which generates acid upon exposure and exhibits changed solubility in a developing solution by the action of acid, comprising a base component (A) which exhibits changed solubility in a developing solution by the action of acid, and an acid generator component (B) which generates acid upon exposure, wherein the base component (A) comprises a polymeric compound (A1) having a structural unit (a0) represented by general formula (a0-1) shown below: wherein R represents a hydrogen atom, or a methyl group; A″ represents an oxygen atom, a sulfur atom or an alkylene group of 1 to 5 carbon atoms which may contain an oxygen atom or a sulfur atom; R the lactone-containing cyclic group is represented by any one of formulae (a2-r-2) to (a2-r-7) shown below, the —SO the carbonate-containing cyclic group is represented by any one of formulae (ax3-r-1) to (ax3-r-3) shown below: wherein each Ra′ wherein each Ra′ wherein each Ra′