Patent ID: 7090784
Filing Date: 2006-08-15
Classification: B82Y,C03C,C08J,C23F,G03F,G11B,H01G,H01J,H01L,H01M,Y02E,Y02P,Y10S,Y10T

Abstract:
1. A method for forming a pattern comprising: on a substrate, forming a film comprised of a pattern forming material, wherein the pattern forming material comprises a block copolymer or graft copolymer comprising: a polymer chain comprising a repeating unit represented by the following formula: wherein R a thermally decomposable polymer chain; forming a microphase-separated structure in the film, said microphase-separated structure comprising a thermally decomposable polymer phase and a remaining polymer phase; removing the thermally decomposable polymer phase from the microphase-separated structure by heating said film to a thermal decomposition temperature or more, to form a pattern of the microphase-separated structure; and transferring the pattern of the microphase-separated structure to the substrate by etching the substrate using the remaining polymer phase in the film as a mask.