Patent ID: 8685614

Claim:
A positive photosensitive composition comprising: (A) a compound capable of generating a sulfonic acid represented by formula (X) below upon irradiation with one of an actinic ray and radiation; and (B) a resin capable of decomposing under the action of an acid to increase the solubility in an alkali developer: wherein R 1a and R 3a to R 13a each represents a hydrogen atom, an alkyl group, a haloalkyl group, a halogen atom or a hydroxyl group; R 2a represents a cycloalkyl group; A 1 and A 2 , which may be the same or different, each represents a single bond or a hetero atom-containing divalent linkage group, provided that, when each of A 1 and A 2 is a single bond, all of the R 1a and R 3a to R 13a groups do not simultaneously represent a fluorine atom and all of the R 1a and R 3a to R 13a groups do not simultaneously represent a hydrogen atom; m 1 to m 5 , which are the same or different, each represents an integer of 0 to 12; and p represents an integer of 0 to 4; and wherein the compound (A) is a photoacid generator compound which is a sulfonium or iodonium salt of the sulfonic acid represented by formula (X); and the resin (B) contains a lactone group.