Patent ID: 9018686
Filing Date: 2015-04-28
Classification: H01L

Abstract:
1. A device, comprising: a first plurality of fins on a semiconductor substrate, the first plurality of fins including a semiconductor material and extending perpendicular from the semiconductor substrate; a second plurality of fins on the semiconductor substrate, the second plurality of fins including a semiconductor material and extending perpendicular from the semiconductor substrate; a chemox layer deposited on lower portions of the fins of the first plurality of fins to a thickness of about 7 Angstroms to about 10 Angstroms; and a dielectric layer deposited on the fins of the second plurality of fins and substantially completely covering the fins to a thickness of about 20 Angstroms to about 50 Angstroms; wherein the dielectric layer is thicker than the chemox layer; and wherein the chemox layer is not deposited on the dielectric layer.