Patent ID: 6376151
Filing Date: 2002-04-23
Classification: C08G,G03F

Abstract:
A positive resist composition comprising a hydroxypolyamide represented by the following formula (I) and a photoactive component: wherein R1 and R3 may be the same or different and are each a tetravalent aromatic group; R2 is a bivalent aromatic group; n is an integer of 2 to 150; and Z is a monovalent organic group and at least 40% of Z is a group represented by the following structural formula (II):â€”Xâ€”R4â€”(COOH)mâ€ƒâ€ƒ(II) wherein X is a carbonyl group or a sulfonyl group; m is an integer of 0 to 3 with a proviso that m is not 0 when X is a carbonyl group; R4 is an aliphatic group not including alkenyl group or alkynyl group, an alicyclic group or an aromatic group; and, when X is a carbonyl group and R4 is an alicyclic group or an aromatic group, at least one of the carboxylic groups is at the ortho position.