Patent ID: 8334091
Filing Date: 2012-12-18
Classification: G03F,H01L

Abstract:
1. A method of manufacturing a miniaturized device comprising the steps of: forming on a layer to be etched a hydrophobic resist pattern from a polymethyl methacrylate resist as an EB resist or from an alicyclic group acryl based resist as an ArF resist, coating a resist pattern swelling material over the surface of the resist pattern, swelling the resist pattern by increasing an affinity between the coating formed from the resist pattern swelling material and the underlying resist pattern, without depending upon the cross linking reaction caused through the diffusion of an acid, thereby forming a swelled resist pattern, and patterning the layer to be etched with a dry etching method through the swelled resist pattern as the mask, wherein the resist pattern swelling material comprises a water-soluble resin composition comprising: at least one resin selected from the group consisting of polyvinyl alcohol, polyvinyl acetal or polyvinyl acetate; at least one cross linking agent selected from a group of the cross linking agents consisting of melamine derivative, urea derivative and uryl derivative; at least one interfacial active agent selected from the group consisting of a polyoxyethylene-polyoxypropylene condensation product based interfacial active agent, a polyoxyalkylenealkylether based interfacial active agent, a polyoxyethylenealkylether based interfacial active agent, a polyoxyethylene derivative based interfacial active agent, a sorbitan fatty acid ether based interfacial active agent, a glycerine fatty acid ester based interfacial active agent, a primary alcohol ethoxylate based interfacial active agent and a phenol ethoxylate based interfacial active agent; deionized water as a solvent; and at least one organic solvent selected from the group consisting of an alcohol based organic solvent, a chain ester based organic solvent, a cyclic ester based organic solvent, a ketone based organic solvent, a chain ether based organic solvent and cyclic ether based organic solvent, and wherein the interfacial active agent is contained in at least 0.0625 parts by weight per 100 parts by weight of a solution containing said resin and said cross linking agent.