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. 21, 2017
Filed:
Jul. 27, 2015
Applicant:
Micron Technology, Inc., Boise, ID (US);
Inventors:
Zaiyuan Ren, Boise, ID (US);
Thomas Gehrke, Boise, ID (US);
Assignee:
Micron Technology, Inc., Boise, ID (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/06 (2010.01); H01L 33/30 (2010.01); C30B 25/00 (2006.01); H01L 33/08 (2010.01); H01L 33/20 (2010.01); H01L 33/32 (2010.01); H01L 33/00 (2010.01); H01L 21/02 (2006.01);
U.S. Cl.
CPC ...
H01L 33/06 (2013.01); C30B 25/00 (2013.01); H01L 33/007 (2013.01); H01L 33/08 (2013.01); H01L 33/20 (2013.01); H01L 33/32 (2013.01); H01L 21/0237 (2013.01); H01L 21/0254 (2013.01); H01L 21/0262 (2013.01); H01L 21/02573 (2013.01); H01L 33/0075 (2013.01); H01L 33/30 (2013.01);
Abstract
Solid state lighting devices that can produce white light without a phosphor are disclosed herein. In one embodiment, a solid state lighting device includes a first semiconductor material, a second semiconductor material spaced apart from the first semiconductor material, and an active region between the first and second semiconductor materials. The active region includes a first sub-region having a first center wavelength and a second sub-region having a second center wavelength different from the first center wavelength.