Patent ID: 8541160

Claim:
An actinic-ray- or radiation-sensitive resin composition comprising: (A) a resin containing a repeating unit with any of partial structures of general formula (I) below, the resin being configured to increase its rate of dissolution in an alkali developer when acted on by an acid; (B) a compound (PA) containing a functional group with proton acceptor properties and being configured to decompose when exposed to actinic rays or radiation to thereby produce a compound exhibiting lower or no proton acceptor properties or a compound exhibiting acid properties instead of the proton acceptor properties; and (C) a compound being configured to generate an acid when exposed to actinic rays or radiation; wherein the resin is contained in an amount of 50 mass % or more based on total solids of the composition, in which R 13 represents a hydrogen atom, an alkyl group or a cycloalkyl group; and wherein the composition further comprises a hydrophobic resin.