Patent ID: 7618675
Filing Date: 2009-11-17
Classification: G11B

Abstract:
1. A pattern forming method using a phase separation structure of a block copolymer, comprising: coating a substrate including a groove structure pre-formed thereon, with a solution of the block copolymer comprising at least one block comprising a mesogen group represented by the following formula (I): wherein, P is a divalent group selected from the group consisting of: Y, if present, is selected from the group consisting of —F, —Cl, —Br, —CH X is a binding group which is selected from the group consisting of a single bond, —COO—, —OCH m is a numerical value equal to or greater than zero, and n is a numerical value equal to or greater than 2, said mesogen group providing an intermolecular force suitable for crystallinity; and causing the block copolymer to self-assemble in the groove structure, thereby forming block copolymer assemblies in such a way as to be regularly arrayed.