Patent ID: 7510822

Claim:
A positive type photosensitive or heat sensitive composition comprising: (A) a compound represented by formula (I) which is capable of generating an acid by irradiation of actinic ray or by heat, and (B) a resin increasing the solubility in an alkali developing solution by the action of an acid, wherein the resin has a hydroxystyrene unit: wherein Ar represents an aryl group or an aromatic group containing a hetero atom, R 6 represents a hydrogen atom, a cyano group, an alkyl group or an aryl group, R 7 represents a monovalent organic group, Y 1 and Y 2 may be the same or different, and represents an alkyl group, an aryl group, an aralkyl group or an aromatic group containing a hetero atom, Y 1 and Y 2 may be bonded to each other to form a ring, Ar and at least one of Y 1 and Y 2 may be bonded to each other to form a ring, Ar and R 6 may be bonded to each other to form a ring, R 6 and R 7 may be bonded to each other to form a ring, Ar, R 6 , R 7 , Y 1 or Y 2 may be bonded at any one position through a linking group, so that the component (A) may have 2 or more of the structures of formula (I), and X âˆ’ represents a non-nucleophilic anion.