Patent ID: 6815146
Filing Date: 2004-11-09
Classification: G03F,Y10S

Abstract:
A resist composition comprising a fluoropolymer (A), an acid-generating compound (B) which generates an acid under irradiation with light and an organic solvent (C), wherein the fluoropolymer (A) comprises:(i) blocked acidic groups, (ii) monomeric units formed by cyclopolymerization of a fluorinated diene of formula (1) CF2&boxH;CR1â€”Qâ€”CR2&boxH;CH2â€ƒâ€ƒ(1) â€ƒwherein each of R1 and R2 which are independent of each other, is a hydrogen atom, a fluorine atom, a methyl group or a trifluoromethyl group, and Q is a bivalent organic group which is a blocked acidic group capable of forming an acidic group by an acid, an acidic group, or a group other than an acidic group which can be converted to a blocked acidic group; and (iii) monomeric units formed by polymerization of an acrylic monomer of formula (2): CH2&boxH;CR3â€”CO2R4â€ƒâ€ƒ(2) â€ƒwherein R3 is a hydrogen atom, a fluorine atom, a methyl group or a trifluoromethyl group, and R4 is a hydrogen atom, a hydrocarbon group, an organic group having an acidic group, an organic group having a blocked acidic group capable of forming an acidic group by an acid, or an organic group having a group other than an acidic group which can be converted to a blocked acidic group.