Patent ID: 9029073
Filing Date: 2015-05-12
Classification: C09D,C09J

Abstract:
1. A pattern formation method for a layer containing a block copolymer, the method comprising: applying an undercoat agent to a substrate, and forming a layer comprising the undercoat agent, wherein the undercoat agent comprises a resin component comprising a structural unit having an aromatic ring and a structural unit having no aromatic ring, and the resin component comprises a group which can interact with the substrate selected from the group consisting of a carboxy group, a cyano group, an amino group and a trimethoxysilyl group, and includes a 3 to 7-membered, ether-containing cyclic group; forming a layer containing a block copolymer having a plurality of blocks bonded on a surface of the layer comprising the undercoat agent, and then performing phase separation of the layer containing the block copolymer; and selectively removing, from the layer containing the block copolymer, a phase comprising at least one type of block among the plurality of types of blocks that constitute the block copolymer.