Patent ID: 6316160
Filing Date: 2001-11-13
Classification: C09D,G02B,G03F

Abstract:
An improved anti-reflective coating composition comprising:a solvent-soluble cellulosic binder selected from the group consisting of cellulose esters and cellulose ethers;an alkylated aminoplast crosslinking agent derived from melamine, urea, benzoguanimine, or glycoluril;an acid catalyst or a latent acid catalyst which upon heating generates a catalytically active acid species;a solvent vehicle with high solvency for aminoplasts and cellulosic binders and effective surface wetting and evaporation properties to obtain a defect-free coating quality and feature coverage at coating thicknesses of 0.05 to 0.20 microns for microlithographic processing; anda solvent-soluble dye or dye mixture comprising effective functional groups for reaction with the aminoplast crosslinking agent during a thermal curing cycle for the composition.