Patent ID: 7695891

Claim:
A photosensitive composition for exposure with an ArF excimer laser comprising: (A) a compound capable of generating a compound represented by formula (I) upon irradiation with actinic rays or radiation: A-R—X—F (I) wherein X represents —CO— or —SO 2 —; R represents a fluorine atom-containing divalent linking group; A represents an acidic group; and (C) a resin having a group capable of decomposing under the action of an acid to increase a solubility of resin (C) in alkali developer; wherein the compound (A) capable of generating a compound represented by formula (I) upon irradiation with actinic rays or radiation is a sulfonium salt compound of the compound represented by formula (I) or an iodonium salt compound of the compound represented by formula (I); the acidic group of A in formula (I) is —SO 3 H, —CO 2 H or —X—NH—X—R 1 , wherein X represents —CO— or —SO 2 —, and a plurality of X's may be the same or different; R 1 represents a monovalent organic group and the resin (C) has no aromatic group.