Patent ID: 6350818
Filing Date: 2002-02-26
Classification: C08F,G03F

Abstract:
A diazonapthoquinonesulfonyl-substituted polymer suitable for use in an anti-reflective coating of a semiconductor device, said polymer being selected from the group consisting of:(a) polyhydroxystyrene polymers having the formula: â€ƒwherein R is hydrogen, a C1-C6 alkyl group, hydroxy or hydroxymethyl; and m:n is the mole ratio of 0.1-0.9:0.1-0.9; (b) poly(styrene-acrylate) polymers having the formula: â€ƒwherein R is hydrogen, an C1-C6 alkyl group, hydroxy or hydroxymethyl; x is a number from 1 and 5; and a:b:c:d is the mole ratio of 0.1-0.9:0.1-0.9:0.1-0.9:0.1-0.9; and (c) novolac polymers having the formula: â€ƒwherein R1 is hydrogen, methyl or hydroxy; and e is the average degree of polymerization.