Patent ID: 8945809
Filing Date: 2015-02-03
Classification: C07C,C08F,C08K,C08L,G03F

Abstract:
1. A resist composition comprising (A) a polymer comprising recurring units of the general formula (1a) and recurring units of one or more type selected from the general formulae (2a), (2b), (2e), and (2f) wherein R 1 is hydrogen, fluorine, methyl or trifluoromethyl, R 2 is a straight, branched or cyclic C 1 -C 15 monovalent hydrocarbon group which may have a halogen or oxygen atom, A is a straight, branched or cyclic C 1 -C 6 divalent hydrocarbon group, and k 1 is an integer of 0 to 2, wherein R R R R (B) a polymer having a lactone ring-derived structure, hydroxyl-containing structure and/or maleic anhydride-derived structure as a base resin, said base polymer becoming soluble in alkaline developer under the action of acid, (C) a compound capable of generating an acid upon exposure to high-energy radiation, and (D) an organic solvent, wherein the recurring units of the general formula (1a) is derived from a fluorinated monomer selected from the group consisting of those represented by the following formulae: wherein R