Patent ID: 7807329

Claim:
A photosensitive composition comprising: (A) a compound represented by the following formula (I): wherein Ar 1 and Ar 2 each independently represents a benzene ring, and Ar 3 is an optionally substituted benzene ring, wherein the substituent is selected from the group consisting of a straight chain, branched or cyclic alkyl group having from 1 to 6 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, an acyl group having from 1 to 6 carbon atoms, a cyano group, a nitro group, a halogen group, a -Q-SO 2 Ra group and a -Q-CORb group, and wherein at least one of Ar 1 to Ar 3 has a -Q-SO 2 Ra group or a -Q-CORb group as a substituent; Ra and Rb each independently represents an alkyl group or an aryl group; Q represents an oxygen atom or —N(Ry)-; Ry represents a hydrogen atom, an alkyl group, or a cycloalkyl group; X represents a single bond or a divalent linking group; and Y represents a sulfonate anion, a bis(alkylsulfonyl)-amide anion, or a tris(alkylsulfonyl) methide anion; and, (B) a resin capable of decomposing by the action of an acid to increase the solubility in an alkali developer.