Patent ID: 8916331

Claim:
A resist composition comprising (A) a polymer comprising recurring units of the following general formula (1a), (B) a polymer having a lactone ring-deviated structure, hydroxyl-containing structure and/or maleic anhydride-derived structure and adapted to become soluble in an alkaline developer under the action of an acid as a base resin, (C) a compound capable of generating an acid upon exposure to high-energy radiation, and (D) an organic solvent, wherein R 1 is hydrogen, R 2 is hydrogen or methyl, Aa is a branched C 2 -C 20 hydrocarbon group having a valence of k 1 +1 selected from the group consisting of the following groups: wherein the broken line designates a valence bond, Ab is a straight, branched or cyclic C 1 -C 6 divalent hydrocarbon group, k 1 is an integer of 1 to 3, and k 2 is 0 or 1.