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:
Feb. 09, 2021
Filed:
Jun. 15, 2020
Applicant:
Lumileds Llc, San Jose, CA (US);
Inventors:
Sridevi A. Vakkalanka, San Jose, CA (US);
S. Rao Peddada, San Jose, CA (US);
Assignee:
Lumileds LLC, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/62 (2010.01); H01L 33/60 (2010.01); B23K 31/02 (2006.01); H01L 33/48 (2010.01); B23K 3/06 (2006.01); B23K 1/00 (2006.01);
U.S. Cl.
CPC ...
H01L 33/62 (2013.01); B23K 1/0016 (2013.01); B23K 3/0638 (2013.01); B23K 31/02 (2013.01); H01L 33/486 (2013.01); H01L 33/60 (2013.01); H01L 2933/0033 (2013.01); H01L 2933/0066 (2013.01);
Abstract
A light emitting device comprises a reflector cup coupled to a base that defines a cavity. The base comprises a plurality of metal pads exposed on a bottom surface of the cavity. The base further comprises a plurality of protrusions arranged around a perimeter of the base and disposed inside one or more side surfaces of the reflector cup. The light emitting device comprises an LED die disposed over the bottom surface of the cavity. The LED die is coupled to the metal pads with gold-tin solder. The LED die has a footprint that is at most 30% smaller than an area of a top opening of the cavity.