Patent ID: 9287115
Filing Date: 2016-03-15
CPC Classification: H01L

Claim Text:
1. A method of forming a semiconductor device comprising: forming a trench in a dielectric layer, the dielectric layer being present on a semiconductor including substrate; forming a via at a perimeter of the trench, wherein the via extending from a base of the trench present at a depth within the dielectric layer to an exposed upper surface of the semiconductor including substrate; epitaxially forming a III-V semiconductor material extending from the exposed upper surface of the semiconductor including substrate filling at least a portion of the trench, the III-V semiconductor material filling the via; forming the semiconductor device on the III-V semiconductor material that is present in the trench, wherein an active region of the semiconductor device that is formed in the III-V semiconductor material is separated from the perimeter of the trench; removing the III-V semiconductor material from the via; and filling the via with a dielectric material.