Patent ID: 7410853
Filing Date: 2008-08-12
Classification: B82Y,H01L,Y10S

Abstract:
1. A method of forming a nanowire, comprising: forming a trench by partially etching a semiconductor substrate; forming an insulation layer pattern on the semiconductor substrate to fill up the trench, wherein the insulation layer pattern covers a first region of the semiconductor substrate where the nanowire is formed, and the insulation layer pattern covers a second region of the semiconductor substrate connected to the first region; forming an opening by etching an exposed portion of the semiconductor substrate by the insulation layer pattern using the insulation layer pattern as an etching mask; forming a spacer on sidewalls of the opening and the insulation layer pattern; and forming the nanowire connected to the second region by anisotropically etching a portion of the semiconductor substrate exposed by the opening until a portion of the insulation layer pattern formed in the trench is exposed.