Patent ID: 7378216

Claim:
A resist material comprising a base polymer containing a compound including a copolymer of a first unit represented by a general formula of the following Chemical Formula 1 and a second unit represented by a general formula of the following Chemical Formula 2: wherein R 1 , R 2 , R 3 , R 7 and R 8 are the same or different and are a hydrogen atom, a fluorine atom, or 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 and R 6 are the same or different and are 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 9 is a fluorine atom, or 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.