Patent ID: 7312014

Claim:
A resist composition comprising: at least one kind of polymer represented by the following general formula [5]: [wherein, R 1 is a hydrogen atom or methyl group; R 2 is a hydrogen atom or a linear or a branched alkyl group, and R 3 is an acid labile group which can be easily eliminated by an action of acid and bonded to bonded to a carboxylic acid to form an ester linkage; k, l and m are integers (with a proviso of 0.25≧l/(k+l+m)≧0.10; and 0.20≧m/(k+l+m)≧0.07)]; a mixture of at least one kind of compound represented by the following general formula [6]: [wherein, each of R 6 and R 7 is independently a hydrogen atom or an electron-withdrawing group (with a proviso of excluding the case when both of R 6 and R 7 are simultaneously hydrogen atoms); each of R 4 , R 6 and R 8 is independently a hydrogen atom or a halogen atom; R 9 is a hydrogen atom, a halogen atom a linear or a branched alkyl group having 1-4 carbon atoms, a linear or a branched alkoxy group having 1-4 carbon atoms, a linear or a branched alkoxycarbonyloxy group having 2-5 carbon atoms cyclic acetal group having 4-5 carbon atoms, and n is an integer of 1-3; and R 10 ′ is a halogen atom, a linear or branched alkyl group having 1-4 carbon atoms; a linear or a branched alkoxy group having 1-4 carbon atoms; a linear or a branched alkoxycarbonyloxy group having 2-5 carbon atoms or a cyclic acetal group having 4-5 carbon atoms] and at least one kind of compound represented by the following general formula [7]: [wherein, R 4 , R 5 , R 6 , R 7 and R 8 described above]; an organic basic compound; and a solvent.