Patent ID: 8872308
Filing Date: 2014-10-28
Classification: H01L

Abstract:
1. III-N material grown on a silicon substrate comprising: a single crystal silicon substrate; a single crystal rare earth oxide layer positioned on the silicon substrate, the rare earth oxide being substantially crystal lattice matched to the surface of the silicon substrate; a first layer of single crystal GaN material positioned on the surface of the single crystal rare earth oxide layer; an inter-layer of single crystal aluminum nitride (AlN) positioned on the surface of the first layer of single crystal GaN material and an additional layer of single crystal GaN material positioned on the surface of the inter-layer of single crystal aluminum nitride, the inter-layer of single crystal aluminum nitride and the additional layer of single crystal GaN material repeated n-times to reduce or engineer strain in a final single crystal GaN layer; and a cap layer of single crystal AlN positioned on the surface of the final single crystal GaN layer.