Patent ID: 9478429
Filing Date: 2016-10-25
CPC Classification: B81C,G03F,H01L

Claim Text:
1. A method of fabricating a self-assembled template, comprising: removing a material layer to form a pattern of sacrificial posts that physically extend from a substrate, the pattern configured to direct self-assembly of a block copolymer into a non-final pattern block and a remainder block, wherein the sacrificial posts each have a diameter; directly after removing the material layer to form the pattern of sacrificial posts, applying the block copolymer to the substrate having the pattern of sacrificial posts; annealing the substrate having the block copolymer and sacrificial posts so that the block copolymer forms the non-final pattern and the remainder block; and performing an etching process to concurrently remove the non-final pattern block of the block copolymer and the sacrificial posts such that the final pattern of the remainder block remains on the substrate.