Patent ID: 8349715
Filing Date: 2013-01-08
Classification: H01L

Abstract:
1. A method comprising: providing a patterned oxide layer on a semiconductor substrate, said patterned oxide having at least one opening that exposes an upper surface of said semiconductor substrate; forming an oxygen reactive element-containing layer on an upper surface of said patterned oxide layer and on said exposed upper surface of said semiconductor substrate; performing an anneal process which forms a compound oxide layer in areas in which said oxygen reactive element-containing layer is in direct contact with said upper surface of said patterned oxide, said anneal process further forms a non-oxidized seed material in areas in which said element-containing layer is in direct contact with said exposed upper surface of said semiconductor substrate; growing semiconductor nanowires from said non-oxidized seed material; and removing said non-oxidized seed material from a tip of each semiconductor nanowire after growing said semiconductor nanowires.