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:
Sep. 09, 2008
Filed:
Apr. 07, 2005
Applicants:
Adrian Powell, Cary, NC (US);
William H. Brixius, Hillsborough, NC (US);
Robert Tyler Leonard, Raleigh, NC (US);
Davis Andrew Mcclure, Cary, NC (US);
Michael Laughner, Clayton, NC (US);
Inventors:
Adrian Powell, Cary, NC (US);
William H. Brixius, Hillsborough, NC (US);
Robert Tyler Leonard, Raleigh, NC (US);
Davis Andrew McClure, Cary, NC (US);
Michael Laughner, Clayton, NC (US);
Assignee:
Cree, Inc., Durham, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 33/20 (2006.01); C30B 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A high quality single crystal wafer of SiC is disclosed. The wafer has a diameter of at least about 3 inches, a warp of less than about 5 μm, a bow less than about 5 μm, and a total thickness variation of less than about 2.0 μm.