Patent ID: 6703181
Filing Date: 2004-03-09
Classification: C08K,G03F

Abstract:
A method of forming a pattern, comprising forming a resin layer on a substrate, said resin layer being made of mainly a composition comprising:(a) a polymer obtained by protecting an alkali soluble group of an alkali-soluble polymer by a group which is unstable to an acid; (b) a compound which generates an acid upon being irradiated with light; and (c) at least one compound which is selected from the group consisting of an imidazole compound, an alanine compound, an adenine compound, an adenosine compound, and a quaternary ammonium salt compound, and which increases miscibility in the resist film; subjecting said resin layer to a pattern exposure; baking said resin layer obtained after said pattern exposure; and developing said resin layer obtained after said pattern exposure with an alkali aqueous solution or an organic solvent as a developing solution, wherein with addition of the component (c), miscibility of the resist film is enhanced, phase separation of the resist film is avoided when the resist film is formed, and the components have a uniform concentration distribution within the film; and wherein said polymer (a) has repeating units of the formula: wherein m is from 0.75 to 0.85, and n is from 0.15 to 0.25, and are each molar ratios, and (c) is at least one member selected from the group consisting of (A-1), (A-2), and (A-3) below