Patent ID: 6100011
Filing Date: 2000-08-08
Classification: G03F,Y10S

Abstract:
A process for producing a positive lithographic pattern on a substrate which comprises:a. providing on said substrate a coating of photosensitive polymeric material;b. imagewise exposing said polymeric material to actinic light, x-ray or e-beam to provide free carboxylic acid groups;c. developing said lithographic pattern by contacting said photosensitive polymeric material with an aqueous developer solution of about 0.001% to about 1% by weight of a compound containing at least one amino group and at least two sulfonate groups selected from the group consisting of alkali metal sulfonate group, ammonium sulfonate group and mixtures thereof to thereby remove the portions of said polymeric material exposed to said actinic light, x-ray or e-beam.