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.
Patent No.:
Date of Patent:
Mar. 31, 2020
Filed:
Jun. 26, 2018
Applicant:
Slt Technologies, Inc, Los Angeles, CA (US);
Inventors:
Mark P. D'Evelyn, Santa Barbara, CA (US);
Dirk Ehrentraut, Santa Barbara, CA (US);
Derrick S. Kamber, Goleta, CA (US);
Bradley C. Downey, Plano, TX (US);
Assignee:
SLT TECHNOLOGIES, INC., Los Angeles, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C30B 19/02 (2006.01); C30B 29/40 (2006.01); C30B 7/10 (2006.01); C30B 23/04 (2006.01); C30B 25/04 (2006.01);
U.S. Cl.
CPC ...
C30B 29/406 (2013.01); C30B 7/105 (2013.01); C30B 19/02 (2013.01); C30B 23/04 (2013.01); C30B 25/04 (2013.01);
Abstract
Methods for large-scale manufacturing of semipolar gallium nitride boules are disclosed. The disclosed methods comprise suspending large-area single crystal seed plates in a rack, placing the rack in a large diameter autoclave or internally-heated high pressure apparatus along with ammonia and a mineralizer, and growing crystals ammonothermally. A bi-faceted growth morphology may be maintained to facilitate fabrication of large area semipolar wafers without growing thick boules.