Patent ID: 9443727
Filing Date: 2016-09-13
CPC Classification: C30B,H01L

Claim Text:
1. A method of producing a terminal semi-polar group III-nitride layer on a dissimilar substrate with nanometer scale control of semi-polar AlGaN and GaN growth rates, the method comprising: a) Selecting a suitable substrate from the group consisting of sapphire, silicon carbide, magnesium aluminate spinel, lithium aluminate, silicon, silica glass, gallium nitride, aluminum nitride, or alloys thereof; b) Growing an aluminum nitride nucleation layer on the substrate at any temperature ranging from 400 to 1300 degrees Celsius, and any thickness from 0.1 nm to 1000 μm; c) Growing a stepped aluminum gallium nitride layer, wherein the stepped aluminum gallium nitride layer consists of six steps of Al d) Growing of a periodic epi-structure consisting of alternating layers of group III-nitrides of dissimilar compositions at alternating precursor flows and alternating temperatures; and e) Growing the terminal semi-polar group III-nitride layer upon the underlying nanometer scale III-nitride stepped layers and/or periodic structures.