Patent ID: 7157205
Filing Date: 2007-01-02
Classification: C09D,G03F,Y10S

Abstract:
1. An intermediate layer composition for multilayer resist process, the composition comprising polymer (A) having a repeating unit represented by the following formula (I): wherein R 1 to R 7 are the same or different, and each represents a hydrogen atom, an alkyl group, an alkoxyl group, an aryl group, an aralkyl group, a cycloalkyl group or an alkenyl group; one of X, Y and Z represents a hydroxyl group, and the another one of X, Y and Z is —O—, and the other one of X, Y and Z is a group represented by following formula (IA) which is linked on the oxygen atom side; and n represents from 0 to 10; wherein R 11 to R 14 are the same or different, and each represents a hydrogen atom, an alkyl group, an alkoxyl group, an aryl group, an aralkyl group, a cycloalkyl group or an alkenyl group; R R m represents from 0 to 10.