Patent ID: 6207356
Filing Date: 2001-03-27
Classification: G03F

Abstract:
A method for the pattern-processing of a photosensitive resin composition for use in a semiconductor wafer coating, which comprises coating on a substrate a positive photosensitive resin composition consisting essentially of a polyamide represented by the following formula (1) and a diazoquinone compound: ##STR17##wherein X is a tetravalent aromatic group; Y is a divalent aromatic group; Z is ##STR18##in which R.sub.1 and R.sub.2 are divalent organic groups and R.sub.3 and R.sub.4 are monovalent organic groups; a and b represent mole fractions; a+b=100%; a=60-95 mole %; b=5-40 mole % and n=2-500, subjecting the same to prebaking and then to irradiation with a light, thereafter dissolving the exposed portion in an organic alkaline aqueous solution containing an alkyl-benzenesulfonic acid to remove the same, thereby obtaining a pattern.