Patent ID: 8287749

Claim:
A method of manufacturing a high-molecular thin film having a structure, the method comprising: a first step of arranging a high-molecular layer on a surface of a substrate, the high-molecular layer containing a block-copolymer compound; and a second step of causing microphase separation of the high-molecular layer and of forming microdomains arranged in a continuous phase regularly, and wherein the block-copolymer compound contains: a block copolymer A as a main constituent, the block copolymer A being composed of at least a polymer block chain A 1 and a polymer block chain A 2 ; and a block copolymer B as an accessory constituent, the block copolymer B being composed of a polymer block chain B 1 and a polymer block chain B 2 , the polymer block chain B 1 being miscible with a polymeric phase P 1 mainly composed of the polymer block chain A 1 , and the polymer block chain B 2 being miscible with a polymeric phase P 2 mainly composed of the polymer block chain A 2 , a molecular weight Mn(A 1 ) of the polymer block chain A 1 , a molecular weight Mn(A 2 ) of the polymer block chain A 2 , and a molecular weight Mn(B 2 ) of the polymer block chain B 2 satisfy a following relational expression (1): Mn( A 2)>Mn( A 1) and Mn( B 2)>Mn( A 2),â€ƒâ€ƒrelational expression (1): wherein the surface of the substrate has a surface part formed of a first material and a surface part on which a pattern member formed of a second material is arranged discretely to the surface part, and in the second step, interfacial tension of the polymeric phase P 1 to the surface part formed of the first material is smaller than interfacial tension to the surface part formed of the second material, and interfacial tension of the polymeric phase P 2 to the surface part formed of the first material is larger than interfacial tension to the surface part formed of the second material.