Patent ID: 8021819

Claim:
A photosensitive composition, which comprises (a) a compound represented by formula (I): wherein R 1 to R 13 each independently represents a hydrogen atom or a substituent, and at least one of R 1 to R 13 is a substituent containing an alcoholic hydroxyl group, wherein the substituent containing an alcoholic hydroxyl group is represented by —W—Y, wherein Y is an alkyl group substituted with a hydroxyl group, and W is a single bond or a divalent linking group obtained by substituting an arbitrary hydrogen atom of a monovalent group with a single bond, the monovalent group being selected from the group consisting of an acyloxy group, a carbamoyloxy group, an alkoxycarbonyloxy group, an aryloxycarbonyloxy group, an acylamino group, an amino-carbonylamino group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfamoylamino group, an alkylsulfonylamino group, an arylsulfonylamino group, an arylthio group, a sulfamoyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkylsulfonyl group, an arylsulfonyl group, an acyl group, an aryloxycarbonyl group, an alkoxycarbonyl group, and a carbamoyl group; Z represents a single bond or a divalent linking group; and X − represents a counter anion, and (b) a resin capable of decomposing by an action of an acid to increase solubility in an alkali developing solution.