Patent ID: 6855477

Claim:
A chemically amplified resist composition comprising (A) a polymer comprising recurring units containing at least one fluorine atom, (B) a compound of the following general formula (1): wherein R 1 and R 2 are independently hydrogen, fluorine or alkyl or fluorinated alkyl having 1 to 4 carbon atoms, at least either one of R 1 and R 2 contains at least one fluorine atom, R 3 is a single bond or alkylene of 1 to 4 carbon atoms, R 4 is a n-valent aromatic group or cyclic diene group having 4 to 40 carbon atoms, R 5 is hydrogen or C(═O)R 6 , R 6 is hydrogen or methyl, and n is 2, 3 or 4, (C) an organic solvent, and (D) a photoacid generator.