Patent ID: 8574811

Claim:
A resist composition comprising; a resin having a structural unit derived from a compound represented by he formula (a); and a fluorine-containing acid generator; wherein R 1 represents a hydrogen atom or a methyl group; R 2 represents an optionally substituted C 1 to C 18 aliphatic hydrocarbon group; A 1 represents an optionally substituted C 1 to C 6 alkanediyl group or a group represented by the formula (a-g1); wherein s represents 0 or 1; A 10 and A 12 independently represent an optionally substituted C 1 to C 5 aliphatic hydrocarbon group; A 11 represents a single bond or an optionally substituted C 1 to C 5 aliphatic hydrocarbon group; X 10 and X 11 independently represents an oxygen atom, a carbonyl group, a carbonyloxy group or an oxycarbonyl group; provided that a total number of the carbon atom of A 10 , A 11 , A 12 , X 10 and X 11 is 6 or less.