Patent ID: 8680507

Claim:
A DBR/gallium nitride/aluminum nitride base grown on a silicon substrate comprising: a single crystal silicon substrate; a Distributed Bragg Reflector (DBR) positioned on the silicon substrate, the DBR being substantially crystal lattice matched to the surface of the silicon substrate, the DBR including multiple layers of single crystal rare earth oxide and alternate layers of single crystal silicon; a first layer of single crystal GaN positioned on the surface of the DBR, the first layer of GaN including a layer in a range of 50 nm to 100 nm thick; and an inter-layer of single crystal aluminum nitride (AlN) positioned on the surface of the first layer of single crystal GaN, the inter-layer of aluminum nitride having a thickness in a range of 1 nm to 10 nm thick, and an additional layer of single crystal GaN 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 repeated n-times to reduce or engineer strain in a final III-N layer; and one of an LED structure and an HEMT structure formed in the final III-N layer, and the Distributed Bragg Reflector (DBR) being positioned to direct emitted light from the substrate.