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:
Aug. 14, 2007
Filed:
Nov. 24, 2004
Fernando A. Ponce, Tempe, AZ (US);
Rafael Garcia, Tempe, AZ (US);
Abigail Bell, Northamptonshire, GB;
Alan C. Thomas, Gilbert, AZ (US);
Michael R. Stevens, Phoenix, AZ (US);
Fernando A. Ponce, Tempe, AZ (US);
Rafael Garcia, Tempe, AZ (US);
Abigail Bell, Northamptonshire, GB;
Alan C. Thomas, Gilbert, AZ (US);
Michael R. Stevens, Phoenix, AZ (US);
Arizona Board of Regents, Tempe, AZ (US);
Abstract
A method of producing high quality GaN powder by combining high purity gallium and high purity ammonia in a tube reactor under controlled conditions. A reaction between the ammonia and gallium under the controlled conditions produces a porous gallium melt and to a full reaction, yielding high purity crystalline GaN powders with a stoichiometric nitrogen concentration and a hexagonal wurtzite structure.