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:
Apr. 29, 2008
Filed:
Feb. 05, 2007
Applicants:
Stephan Mueller, Durham, NC (US);
Adrian Powell, Cary, NC (US);
Valeri F. Tsvetkov, Durham, NC (US);
Inventors:
Stephan Mueller, Durham, NC (US);
Adrian Powell, Cary, NC (US);
Valeri F. Tsvetkov, Durham, NC (US);
Assignee:
Cree, Inc., Durham, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C30B 11/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A silicon carbide seeded sublimation method is disclosed. The method includes the steps of nucleating growth on a seed crystal growth face that is between about 1° and 10° off-axis from the (0001) plane of the seed crystal while establishing a thermal gradient between the seed crystal and a source composition that is substantially perpendicular to the basal plane of the off-axis crystal.