Patent ID: 7588876

Claim:
A resist material comprising a base polymer containing a compound including a unit represented by a general formula of the following Chemical Formula 1: wherein R 1 , R 2 and R 3 are the same or different and are a hydrogen atom, a fluorine atom, a straight-chain alkyl group, a branched or cyclic alkyl group or a fluoridated alkyl group with a carbon number not less than 1 and not more than 20; R 4 is a straight-chain alkylene group or a branched or cyclic alkylene group with a carbon number not less than 0 and not more than 20; R 5 is a hydrogen atom, a straight-chain alkyl group, a branched or cyclic alkyl group or a fluoridated alkyl group with a carbon number not less than 1 and not more than 20, or a protecting group released by an acid; and R 6 is a group having a cyclic ester compound or a group having a compound including hexafluoroisopropyl alcohol, wherein said group having a cyclic ester compound includes a unit represented by any of general formulas of the following Chemical Formula 2: and wherein said group having a compound including hexafluoroisopropyl alcohol includes a unit represented by any of general formulas of following Chemical Formula 4: