Patent ID: 9437709
Filing Date: 2016-09-06
CPC Classification: H01L

Claim Text:
1. A method of fabricating a semiconductor device, comprising: providing a substrate structure including a substrate and a fin-shaped buffer layer formed over a surface of the substrate; forming a Quantum Well (QW) material layer on a surface of the fin-shaped buffer layer, the QW material layer being suitable for forming an electron gas therein; and forming a barrier material layer on the QW material layer, wherein the substrate further includes an insulating portion adjacent to the fin-shaped buffer laver, the insulating portion being formed along both sides of the buffer layer on the surface of the substrate which is not covered by the buffer layer, and wherein the forming a QW material layer on the surface of the fin-shaped buffer layer comprises: forming a QW material layer on the surface of the fin-shaped buffer layer that is not covered by the insulating portion.