Patent ID: 9508550
Filing Date: 2016-11-29
CPC Classification: H01L

Claim Text:
1. A semiconducting material, comprising: a substrate; a high aluminum content III-V material layer disposed on the substrate, the high aluminum content III-V material layer comprising at least one III element and a V element, the at least one III element comprising Al and being present in an amount of least 50 atomic % (at. %) based on total atomic weight of the at least one III element, and the high aluminum content III-V material layer being partially oxidized to include AlO; a graded layer of an indium (In) containing III-V material disposed on the high aluminum content III-V material layer, the In containing III-V material being indium-gallium-arsenic (InGaAs) or indium-aluminum-arsenic (InAlAs) and comprising In in an increasing atomic gradient up to 35 at. % based on total atomic weight of InGa or InAl; and a InGaAs layer disposed on the graded layer, the InGaAs layer comprising about 25 to about 100 at. % In based on total atomic weight of InGa.