Patent ID: 7695892

Claim:
A resist composition comprising (A) at least two kinds of resins each of which decomposes by action of an acid to undergo an increase in its solubility for an alkali developer; and a hydrophobic resin (HR) containing at least one of a fluorine atom and a silicon atom, wherein at least one kind of the resins (A) is a resin synthesized by living radical polymerization using a chain transfer agent represented by formula (I): wherein: A represents an organic group not containing hetero atoms; Y represents an organic group capable of releasing a radical; and wherein when the hydrophobic resin (HR) contains a fluorine atom, a content of the fluorine atom is from 5 to 80% by weight based on the molecular weight of the hydrophobic resin (HR), and when the hydrophobic resin (HR) contains a silicon atom, a content of the silicon atom is from 2 to 50% by weight based on the molecular weight of the hydrophobic resin (HR).