Patent ID: 8546059

Claim:
A photoresist composition comprising a resin, an acid generator and a compound represented by the formula (C1): wherein R c1 represents an aromatic group which can have one or more substituents, R c2 and R c3 independently each represent a hydrogen atom, an aliphatic hydrocarbon group which can have one or more substituents or an aromatic group which can have one or more substituents, R c4 and R c6 independently each represent a hydrogen atom or an aliphatic hydrocarbon group which can have one or more substituents, or R c4 and R c6 are bonded to each other to form an alkanediyl group, R c5 represents an aliphatic hydrocarbon group which can have one or more substituents or an amino group which can have one or two substituents, R c7 represents a hydrogen atom or an aliphatic hydrocarbon group which can have one or more substituents, or R c5 and R c7 are bonded to each other to form an alkanediyl group, said resin becoming soluble in alkali aqueous solution by the action of an acid, and said acid generator containing one or more fluorine atoms.