Patent ID: 8980538
Filing Date: 2015-03-17
Classification: B82Y,G03F

Abstract:
1. A method of forming a layered substrate comprising a self-assembled material, comprising: forming a first layer of material on a substrate; forming a layer of a radiation sensitive material on the first layer of material, the radiation sensitive material comprising a photo-sensitive component comprising a photo-decomposable cross-linking agent; and a cross-linkable polymer; imaging the layer of the radiation sensitive material with patterned light to form a pattern in the layer of the radiation sensitive material, wherein the pattern is defined by a first region having substantial portions of the photo-decomposable cross-linking agent decomposed, and a second region having substantial portions of the photo-decomposable cross-linking agent intact; heating the layer of the radiation sensitive material to a temperature at or above the cross-linking reaction temperature to cross-link the cross-linkable polymer in one of the first or second regions to form a cross-linked region, while the other one of the first or second regions remains as a non-crosslinked region; developing the imaged layer to remove the non-crosslinked region; and forming a block copolymer pattern comprising the self-assembled material derived from a block copolymer.