Patent ID: 7635554
Filing Date: 2009-12-22
Classification: G03F,Y10S

Abstract:
1. A positive photosensitive composition comprising: (A) a resin that has an acid decomposable repeating unit represented by formula (I) and increases its solubility in an alkali developer by action of an acid; (B) a compound generating an acid upon irradiation with actinic light or radiation; (C) a hydrophobic resin insoluble in an alkali developer and having at least either one of a fluorine atom and a silicon atom; and (D) a solvent, wherein in the formula (I), Xa Ry Z represents a divalent linking group; and wherein the resin (C) has at least one repeating unit selected from fluorine-containing repeating units represented by formulas (1-1), (1-2), and (1-3), is stable in an acid and is insoluble in an alkali developer: wherein, in the formulas (1-1) to (1-3), R R R R R Rf represents a fluorine atom or a monovalent organic group having a fluorine atom, L represents a single bond or a divalent linking group, Q represents an alicyclic structure, and k stands for an integer from 0 to 3.