Patent ID: 8247161
Filing Date: 2012-08-21
Classification: C08F,G03F

Abstract:
1. A resist composition for immersion exposure comprising: a base component (A) which exhibits changed solubility in an alkali developing solution under the action of acid; an acid-generator component (B) which generates acid upon exposure; a fluorine-containing resin component (F); and an organic solvent (S), the base component (A), the acid-generator component (B) and the fluorine-containing resin component (F) being dissolved in the organic solvent (S), the fluorine-containing resin component (F) comprising a structural unit (f1) containing a fluorine atom, a structural unit (f2) containing a hydrophilic group-containing aliphatic hydrocarbon group, and a structural unit (f3) represented by formula (f3-1) shown below, and the amount of the fluorine-containing resin component (F) relative to 100 parts by weight of the base component (A) being in the range of 0.5 to 30 parts by weight: wherein R represents a hydrogen atom, a lower alkyl group of 1 to 5 carbon atoms or a halogenated lower alkyl group of 1 to 5 carbon atoms; Y 1 represents an aliphatic cyclic group; Z represents a tertiary alkyl group-containing group or an alkoxyalkyl group; a represents an integer of 1 to 3, and b represents an integer of 0 to 2, with the provision that a+b=1 to 3; and each of c, d and e independently represents an integer of 0 to 3.