Patent ID: 7763319
Filing Date: 2010-07-27
Classification: B05D,B81C,B82Y,C08F,C08L,C09D,G03F,Y10S,Y10T

Abstract:
1. A method of forming a block copolymer assembly comprising oriented microphase-separated block copolymer domains in a compositionally vertically-segregated film comprising: applying a single composition that is film forming to a surface of a substrate, the single composition comprising a mixture, the mixture comprising: forming a layer of the single composition on the surface of the substrate by depositing the mixture onto the substrate; baking the single film forming composition, wherein the orientation control component and block copolymer in the mixture segregate to form a compositionally vertically-segregated film on the surface of the substrate, and wherein the orientation control component is enriched at a film-substrate interface, and the block copolymer assembly component is enriched at an air-film interface; and selectively removing a microphase-separated domain of the block copolymer assembly by etching to provide a topographical pattern, wherein the topographical pattern is transferred to the substrate by a subsequent etch process.