Patent ID: 8574813

Claim:
A resist composition for immersion exposure comprising a resin component (A) which exhibits changed alkali solubility under action of acid and an acid-generator component (B) which generates acid upon irradiation, wherein said resin component (A) comprises a resin (A1) which has a structural unit (a) derived from acrylic acid containing a fluorinated hydroxyalkyl group represented by general formula (I) shown below and a structural unit (a1) selected from the group consisting of structural units represented by general formulas (a1-0-1) and (a1-0-2) shown below, wherein x represents an integer of 0 to 5; and y and z each independently represents an integer of 1 to 5, wherein, R represents a hydrogen atom, halogen atom, lower alkyl group, or halogenated lower alkyl group; and X 1 represents an acid dissociable, dissolution inhibiting group, wherein, R represents a hydrogen atom, halogen atom, lower alkyl group, or halogenated lower alkyl group; X 2 represents an acid dissociable, dissolution inhibiting group; and Y 2 represents an alkylene group or an aliphatic cyclic group; and a resin (A2) which has a structural unit (a′) derived from acrylic acid and contains no fluorine atom, wherein the amount of said resin (A1) contained in said resin component (A) is within a range from 0.1 to 20% by weight.