Patent ID: 7465528
Filing Date: 2008-12-16
Classification: G03F,Y10S

Abstract:
1. A positive-working photosensitive composition comprising: (A) a resin that comprises a repeating unit having a diamantane structure and can decompose under action of an acid to increase solubility in an alkali developer, and wherein the resin (A) has a weight-average molecular weight of 3,000 to 30,000 and a dispersion degree of 1.4 to 2.1; (B) a compound that can generate an organic acid represented by formula (2), (3), (3′), (4) or (5) upon irradiation with an actinic ray or radiation; and (C) a solvent, in formula (2), Rf represents an organic group having a fluorine atom, R represents a hydroxyl group or an organic group, Ar represents an aromatic group, 1 represents an integer of 1 to 6, m represents an integer of 0 to 4, and n represents an integer of 0 to 4, provided that m+n is an integer of 1 or above, in formulae (3) and (3′), A in formulae (4) and (5), Y represents an alkylene group substituted with at least one fluorine atom, and Rc represents an alkyl group or a cycloalkyl group.