Patent ID: 9029266
Filing Date: 2015-05-12
Classification: H01L

Abstract:
1. A semiconductor device manufacturing method, comprising: depositing a silicon film above a semiconductor substrate; forming an insulating film, which includes silicon oxide or silicon nitride, on the silicon film; forming a physical guide, having at least one depressed portion, above the insulating film; forming a directed self-assembly material layer which includes a first polymer and a second polymer in the depressed portion of the physical guide; phase-separating the directed self-assembly material layer into a first region including the first polymer and a second region including the second polymer, the second region having a cylindrical shape, and the first region surrounding a side surface and a bottom surface of the second region; removing the second region; processing the insulating film using the physical guide and the first region as masks, and transferring a pattern corresponding to the second region to the insulating film; and processing the silicon film using the processed insulating film as a mask.