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:
Mar. 29, 2022
Filed:
Aug. 12, 2020
Applicant:
Lumileds Llc, San Jose, CA (US);
Inventor:
Kwong-Hin Henry Choy, Sunnyvale, CA (US);
Assignee:
LUMILEDS LLC, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/24 (2010.01); H01L 33/20 (2010.01); H01L 21/322 (2006.01); H01L 33/00 (2010.01); H01L 33/14 (2010.01); H01L 33/22 (2010.01); H01L 33/40 (2010.01); H01L 21/324 (2006.01); H01L 21/285 (2006.01); H01L 33/30 (2010.01); H01L 21/02 (2006.01);
U.S. Cl.
CPC ...
H01L 33/24 (2013.01); H01L 21/28575 (2013.01); H01L 21/3228 (2013.01); H01L 21/3245 (2013.01); H01L 33/0095 (2013.01); H01L 33/145 (2013.01); H01L 33/20 (2013.01); H01L 33/22 (2013.01); H01L 33/30 (2013.01); H01L 33/40 (2013.01); H01L 33/405 (2013.01); H01L 21/0254 (2013.01); H01L 21/02579 (2013.01); H01L 21/02664 (2013.01); H01L 2933/0016 (2013.01); H01L 2933/0033 (2013.01);
Abstract
A device according to embodiments of the invention includes a semiconductor structure including a light emitting layer disposed between an n-type region and a p-type region. A surface of the p-type region perpendicular to a growth direction of the semiconductor structure includes a first portion and a second portion. The first portion is less conductive than the second portion. The device further includes a p-contact formed on the p-type region. The p-contact includes a reflector and a blocking material. The blocking material is disposed over the first portion and no blocking material is disposed over the second portion.