Patent ID: 7141351
Filing Date: 2006-11-28
Classification: C07D,G03F,Y10S

Abstract:
1. A positive-working resist composition comprising: (A) at least one basic compound represented by the general formula (3): wherein R 2 , R 3 and R 4 are each independently a hydrogen atom, a straight, branched or cyclic alkyl group of 1 to 10 carbon atoms, an aryl group of 6 to 10 carbon atoms, or an aralkyl group of 7 to 10 carbon atoms; R 7 is a straight, branched or cyclic alkylene group of 1 to 10 carbon atoms; and R 8 is a hydrogen atom or an alkyl group of 1 to 15 carbon atoms which may contain at least one group selected from among hydroxyl, carbonyl, ester, ether, sulfide, carbonate, cyano and acetal groups; (B) an organic solvent; (C) a base resin having an acid labile group-protected acidic functional group which is alkali-insoluble or substantially alkali-insoluble, but becomes alkali-soluble when the acid labile group is eliminated; and (D) a photoacid generator.