Patent ID: 7416837
Filing Date: 2008-08-26
Classification: G03F,H01L,Y02E,Y02W

Abstract:
1. A method for preparing a pattern, comprising: forming a resist pattern; and coating a resist pattern-improving material on the surface of the resist pattern, wherein the resist pattern-improving material is mixed with the resist pattern at the interface therebetween, wherein the resist pattern-improving material comprises: (a) a water-soluble or alkali-soluble composition, comprising: (b) a water-soluble aromatic compound, wherein the resist pattern is formed by irradiating an ArF excimar laser light or a laser light having a wavelength shorter than that of the ArF excimar laser light, and wherein the pattern of the resist pattern-improving material includes a base resin which does not substantially transmit the ArF excimar laser light.