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:
Jul. 30, 2019
Filed:
Jul. 12, 2013
Applicant:
Lumileds Llc, San Jose, CA (US);
Inventors:
Chee Weng Soong, Eindhoven, NL;
Tomonari Ishikawa, Eindhoven, NL;
Su Ping Tan, Eindhoven, NL;
Chiou Bee Goh, Eindhoven, NL;
Assignee:
Lumileds, LLC, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/62 (2010.01); H01L 23/495 (2006.01);
U.S. Cl.
CPC ...
H01L 33/62 (2013.01); H01L 23/495 (2013.01); H01L 23/49541 (2013.01); H01L 23/49548 (2013.01); H01L 23/49551 (2013.01); H01L 23/49555 (2013.01); H01L 23/49575 (2013.01); H01L 23/49544 (2013.01); H01L 2924/0002 (2013.01); H01L 2933/0066 (2013.01);
Abstract
Crimping of an LED leadframe to a subassembly may stress the leadframe. Flat leadframes cannot accommodate these stresses. Strain relief sections are added to the leadframe to accommodate crimping or other stresses on the leadframe. Strain relief sections are created in the leadframe in the form of openings, notches or bulges. The strain relief sections may be symmetric or asymmetric.