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:
Jan. 04, 2022
Filed:
Oct. 11, 2019
Applicant:
Lumileds Llc, San Jose, CA (US);
Inventors:
Kentaro Shimizu, Sunnyvale, CA (US);
Hisashi Masui, San Jose, CA (US);
Marcel Rene Bohmer, Eindhoven, NL;
Vernon Wong, Mountain View, CA (US);
Assignee:
Lumileds LLC, San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 33/50 (2010.01); H01L 21/762 (2006.01); H01L 21/02 (2006.01); H01L 21/768 (2006.01); F21V 5/04 (2006.01); F21S 41/25 (2018.01); F21S 41/24 (2018.01); C23C 8/10 (2006.01); C23C 16/06 (2006.01);
U.S. Cl.
CPC ...
H01L 33/505 (2013.01); H01L 21/02244 (2013.01); H01L 21/02614 (2013.01); H01L 21/76227 (2013.01); H01L 21/76888 (2013.01); H01L 33/507 (2013.01); C23C 8/10 (2013.01); C23C 16/06 (2013.01); F21S 41/24 (2018.01); F21S 41/25 (2018.01); F21V 5/045 (2013.01); H01L 2933/0033 (2013.01); H01L 2933/0041 (2013.01);
Abstract
Patterned ceramic wavelength-converting phosphor structures may be bonded to an LED to form a pcLED. The phosphor structures are patterned with features that provide enhanced oxygen permeability to an adhesive bond used to attach the phosphor structure to the LED. The enhanced oxygen permeability reduces transient degradation of the pcLED occurring in the region of the adhesive bond.