Patent ID: 8084183
Filing Date: 2011-12-27
Classification: G03F,Y10S

Abstract:
1. A positive resist composition for electron beam, X-ray or EUV comprising: (A) a compound represented by the following formula (I), and (B) a resin capable of decomposing by the action of an acid to increase solubility in an alkali developing solution, which comprises a repeating unit represented by the following formula (II) and a repeating unit represented by the following formula (III): wherein each of R Z represents a single bond or a divalent linking group not having an electron attractive property; and X wherein each R L M represents a single bond or a divalent linking group; Q represents an alkyl group, a cycloalkyl group, or an alicyclic or aromatic ring group which may contain a hetero atom; and at least two of Q, M and L A represents a halogen atom, a cyano group, an acyl group, an alkyl group, an alkoxyl group, an acyloxy group, or an alkoxycarbonyl group; and each of m and n independently represents an integer of from 0 to 4, provided that m and n do not represent 0 at the same time.