Patent ID: 6322948
Filing Date: 2001-11-27
Classification: G03F,Y10S

Abstract:
A photoresist cross-linker wherein said cross-linker is a copolymer comprising(i) a photoresist cross-linker monomer of chemical formula 1, as a 1.sup.st comonomer:<Chemical Formula 1> ##STR33##wherein X.sub.1 and X.sub.2 individually represent CH.sub.2, CH.sub.2 CH.sub.2, O or S; p is an integer from 0 to 5; R.sub.1 and R.sub.2 independently represent straight or branched C.sub.1-10 alkyl, straight or branched C.sub.1-10 ester, straight or branched C.sub.1-10 ketone, straight or branched C.sub.1-10 carboxylic acid, straight or branched C.sub.1-10 acetal, straight or branched C.sub.1-10 alkyl including at least one hydroxyl group, straight or branched C.sub.1-10 ester including at least one hydroxyl group, straight or branched C.sub.1-10 ketone including at least one hydroxyl group, straight or branched C.sub.1-10 carboxylic acid including at least one hydroxyl group, and straight or branched C.sub.1-10 acetal including at least one hydroxyl group; and R.sub.3 and R.sub.4 independently represent hydrogen or methyl, and(ii) maleic anhydride as a 2.sup.nd comonomer.