Patent ID: 6265130
Filing Date: 2001-07-24
Classification: C07C,C08G,G03F,Y10S

Abstract:
A photoresist copolymer which comprises(i) a first monomer represented by Chemical Formula 1: ##STR18##wherein, R.sub.1 and R.sub.2, which may be identical to or different from each other, represent hydrogen or a tert-butyl group; X represents hydrogen, hydroxy or oxygen; and n represents a number from 1 to 3;(ii) a second monomer selected from the compounds of the formulas: ##STR19##and mixtures thereof,wherein i represents a number from 1 to 3, m and n independently represent a number from 1 to 3, and R.sub.6 and R.sub.7 independently represent an alkyl group or a cyclic alkyl group having 0 to 10 carbon atoms; and(iii) maleic anhydride.