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. 04, 2018
Filed:
Jul. 24, 2008
John Epler, San Jose, CA (US);
James G. Neff, Felton, CA (US);
Oleg B. Shchekin, San Francisco, CA (US);
John Epler, San Jose, CA (US);
James G. Neff, Felton, CA (US);
Oleg B. Shchekin, San Francisco, CA (US);
LUMILEDS LLC, San Jose, CA (US);
Abstract
A device includes a semiconductor structure comprising a light emitting layer disposed between an n-type region and a p-type region. The semiconductor structure is disposed between a window layer and a light-directing structure. The light-directing structure is configured to direct light toward the window layer; examples of suitable light-directing structures include a porous semiconductor layer and a photonic crystal. An n-contact is electrically connected to the n-type region and a p-contact is electrically connected to the p-type region. The p-contact is disposed in an opening formed in the semiconductor structure.