Patent ID: 6319650
Filing Date: 2001-11-20
Classification: G03F,Y10S

Abstract:
A method of forming a pattern of photoresist which comprises:providing on a substrate an uncured film comprising a poly(4-hydroxyphenylethyl methacrylate phenolic functional resin of at least 6K number average molecular weight, a glycoluril derivative having the general formula: ##STR11##in which R.sub.1, and R .sub.2 can be selected individually from the group consisting of alkyls having 1-6 carbons, alkenyls, alkoxy, aryls selected from the group consisting of phenyl, furyl, and thienyl, alkylaryls selected from the group consisiting of tolyl, xylyl, mesityl or C.sub.n H.sub.2n+1 C.sub.6 H.sub.4 -- where n can be from 3-6, halogenated aryls, diphenyl ether and diphenylsulfide;a photoacid generator; an organic solvent; imagewise exposing said film to ultraviolet light having a wavelength of from about 250 to 370 nanometers in a pattern to thereby cause generation of acid catalyst in said pattern; baking said exposed film at 90-130.degree. C. for 1-2 minutes; and developing said photoresist in aqueoux, base solution.