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:
Jun. 19, 2012
Filed:
Jan. 15, 2010
Aurelien J. F. David, San Francisco, CA (US);
Michael R. Krames, Los Altos, CA (US);
Melvin B. Mclaurin, Mountain View, CA (US);
Aurelien J. F. David, San Francisco, CA (US);
Michael R. Krames, Los Altos, CA (US);
Melvin B. McLaurin, Mountain View, CA (US);
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Philips Lumileds LightingCompany, LLC, San Jose, CA (US);
Abstract
Embodiments of the invention include a substrate comprising a host and a seed layer bonded to the host, and a semiconductor structure comprising a light emitting layer disposed between an n-type region and a p-type region grown over the seed layer. A variation in index of refraction in a direction perpendicular to a growth direction of the semiconductor structure is disposed between the host and the light emitting layer.