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:
Dec. 15, 2009
Filed:
Sep. 23, 2004
Applicants:
Andrew Y. Kim, San Jose, CA (US);
Steven A. Maranowski, San Jose, CA (US);
Inventors:
Andrew Y. Kim, San Jose, CA (US);
Steven A. Maranowski, San Jose, CA (US);
Assignee:
Philips Lumileds Lighting Company, LLC, San Jose, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 31/109 (2006.01);
U.S. Cl.
CPC ...
Abstract
A III-nitride light emitting device is grown on a textured substrate, in order to reduce the amount of total internal reflection at the interface between the substrate and the III-nitride layers. In some embodiments, the device includes a first growth region substantially free of voids, and a second growth region that improves the material quality such that high quality layers can be grown over the first and second regions.