Patent ID: 7122589
Filing Date: 2006-10-17
Classification: C08K,G03F,H01L,Y10S

Abstract:
1. A positive resist composition comprising: (A) a resin comprising a repeating unit represented by the following formula (Ia) and a repeating unit represented by the following formula (Ib), which increases the solubility in an alkali developing solution by the action of an acid: (B) a compound represented by the following formula (I), (II) or (III): wherein Ra Ra Ra wherein R R Y n represents an integer of 1 to 4, and with the proviso that when n is 2 or more, a plurality of R two or more of structures represented by formula (I) or (II) may be present by being bonded to each other via one or more of a linkage group at any sites of R X wherein Ar represents an aryl group or a hetero atom-containing aromatic group, R R Y Ar and at least either Y Ar and R X wherein the content of the compound represented by the formula (I) or (II) is from 0.1 to 20% by weight based on the content of the solids in the composition.