The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 19, 2018

Filed:

Sep. 21, 2015
Applicant:

Georgia Tech Research Corporation, Atlanta, GA (US);

Inventors:

Michael William Moseley, Atlanta, GA (US);

William Alan Doolittle, Hampton, GA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/30 (2006.01); C01B 21/06 (2006.01); C30B 23/02 (2006.01); C30B 29/40 (2006.01); H01L 21/02 (2006.01); H01L 21/205 (2006.01); H01L 29/20 (2006.01);
U.S. Cl.
CPC ...
C01B 21/0632 (2013.01); C30B 23/02 (2013.01); C30B 29/403 (2013.01); C30B 29/406 (2013.01); H01L 21/0237 (2013.01); H01L 21/0254 (2013.01); H01L 21/02631 (2013.01); H01L 21/2056 (2013.01); H01L 29/2003 (2013.01); H01L 29/30 (2013.01); C01P 2006/40 (2013.01); C01P 2006/90 (2013.01);
Abstract

Systems and methods for MBE growing of group-III Nitride alloys, comprising establishing an average reaction temperature range from about 250 C to about 850 C; introducing a nitrogen flux at a nitrogen flow rate; introducing a first metal flux at a first metal flow rate; and periodically stopping and restarting the first metal flux according to a first flow duty cycle. According to another embodiment, the system comprises a nitrogen source that provides nitrogen at a nitrogen flow rate, and, a first metal source comprising a first metal effusion cell that provides a first metal at a first metal flow rate, and a first metal shutter that periodically opens and closes according to a first flow duty cycle to abate and recommence the flow of the first metal from the first metal source. Produced alloys include AlN, InN, GaN, InGaN, and AlInGaN.


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