Patent ID: 9728625
Date: 2017-08-08
CPC Classifications: H01L

Claim:
1. A method of forming a semiconductor device comprising: forming a silicon including fin structure having an upper surface that is planar to a (100) crystal plane and a sidewall surface that is planar to a (100) crystal plane; forming a germanium including layer on an upper surface and sidewalls surface of the silicon including fin structure; forming dielectric regions adjacent the silicon including fin structure; diffusing germanium from the germanium including layer into the silicon including fin structure to convert the silicon including fin structure to a silicon germanium including fin structure; and removing the dielectric regions in their entirety after forming the silicon germanium including fin structure, wherein the silicon including fin structure includes a plurality of silicon including fin structures, and diffusing germanium from the germanium including layer into the silicon including fin structure includes forming a plurality of silicon germanium including fin structures; and wherein the forming of the dielectric regions between adjacent fin structures of the plurality of silicon including fin structures comprises: