Patent ID: 9738765
Date: 2017-08-22
CPC Classifications: B05D,C08J,C23C,G03F,H01L

Claim:
1. A method, comprising: i) forming a layer for self-assembly, designated SA layer, comprising a material for self-assembly, designated SA material, on a top surface of a hybrid pre-pattern, and optionally forming a topcoat disposed on a top surface of the SA layer, wherein ii) allowing or inducing the SA material to self-assemble, thereby forming a self-assembled SA layer comprising the lamellar domain pattern, the lamellar domain pattern comprising alternating lamellar domains comprising respective chemically distinct components of the SA material, each of the alternating lamellar domains comprising a plurality of lamellae, wherein iii) selectively removing one of the domains using an etch process, thereby forming an etched domain pattern comprising lamellae of a remaining domain; and iv) selectively transferring the etched domain pattern into the material having greater etch-resistance below the elevated surfaces using a second etch process, thereby forming a transfer pattern comprising topographical features comprising the material of greater etch-resistance.