Patent ID: 8475997

Claim:
A resist composition for immersion exposure comprising: a fluorine-containing polymeric compound (F) comprising a structural unit (f1) having at least one base dissociable group selected from those represented by general formulas (II-1) to (II-4) shown below and a structural unit (f2) represented by general formula (f2-1) shown below; a base component (A) that exhibits changed solubility in an alkali developing solution under the action of acid; and an acid generator component (B) that generates acid upon exposure: wherein each R 2 independently represents a group represented by general formula (III-1) or (III-2) shown below: wherein R 41′ represents an unsubstituted alkylene group of 1 to 9 carbon atoms, and R 42′ represents a fluorinated alkyl group of 1 to 9 carbon atoms, with the provision that the total number of carbon atoms of R 41′ and R 42′ is no more than 10; each of R 71 to R 73 independently represents a linear alkyl group of 1 to 5 carbon atoms, with the provision that at least one of R 71 to R 73 represents an alkyl group having a fluorine atom; wherein R represents a hydrogen atom, a lower alkyl group or a halogenated lower alkyl group; and W is a group represented by any one of general formulas (w-1) to (w-4), wherein R 21 represents an alkyl group of 2 or more carbon atoms; R 22 and R 23 are bonded to each other to form an aliphatic monocyclic group of 7 or more carbon atoms; R 24 represents a branched alkyl group of 3 or more carbon atoms; R 25 and R 26 are bonded to each other to form an aliphatic cyclic group; R 27 represents an acid dissociable, dissolution inhibiting group; R 28 represents a divalent linking group containing a hetero atom; R 29 represents a linear or branched alkyl group or an aliphatic cyclic group; n represents an integer of 0 to 3; R 30 and R 30′ each independently represent a linear or branched alkyl group or a hydrogen atom; and R 29 and R 30 may be bonded to each other to form an aliphatic cyclic group.