Patent ID: 6492441
Filing Date: 2002-12-10
Classification: C08F,G03F

Abstract:
An anti-reflective coating composition comprising:(a) a diazonapthoquinonesulfonyl-substituted polymer selected from the group consisting of: (i) a polyhydroxystyrene polymer of the formula: â€ƒwherein each R is independently 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; (ii) a poly(styrene-acrylate) polymer of the formula: â€ƒwherein each R is independently hydrogen, an C1-C6 alkyl group, hydroxy or hydroxymethyl; each x is independently an integer 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 (iii) a novolac polymer of the formula: â€ƒwherein each R1 is independently hydrogen, methyl or hydroxy; and e is the average degree of polymerization; and (b) one or more light-absorbing compounds selected from the group consisting of anthracene and its derivatives, fluorenone derivatives, fluorene and its derivatives, fluorenol, xanthone, quinazarin and fluorescein.