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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.:

US 10559722 B1

PDFFull Text
Date of Patent:
Feb. 11, 2020

Filed:

Apr. 25, 2017

Light-emitting device

Applicants:

Citizen Electronics Co., Ltd., Fujiyoshida-shi, Yamanashi, JP;

Citizen Watch Co., Ltd., Nishitokyo-shi, Tokyo, JP;

Inventors:

Yuji Omori, Yamanashi, JP;

Sadato Imai, Yamanashi, JP;

Koki Hirasawa, Yamanashi, JP;

Assignees:

CITIZEN ELECTRONICS CO., LTD., Fujiyoshida-Shi, Yamanashi, JP;

CITIZEN WATCH CO., LTD., Nishitokyo-Shi, Tokyo, JP;

Attorney:

Procopio, Cory, Hargreaves & Savitch LLP

Primary Examiner:

Victoria K Hall

Int. Cl.
CPC ...
H01L 33/48 (2010.01); H01L 25/075 (2006.01); H01L 33/50 (2010.01); H01L 33/56 (2010.01); H01L 33/58 (2010.01); H01L 33/60 (2010.01); H01L 33/62 (2010.01);
U.S. Cl.
CPC ...
H01L 33/486 (2013.01); H01L 25/0753 (2013.01); H01L 33/48 (2013.01); H01L 33/502 (2013.01); H01L 33/56 (2013.01); H01L 33/58 (2013.01); H01L 33/60 (2013.01); H01L 33/62 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/48137 (2013.01); H01L 2924/181 (2013.01); H01L 2933/005 (2013.01); H01L 2933/0033 (2013.01); H01L 2933/0041 (2013.01); H01L 2933/0058 (2013.01); H01L 2933/0066 (2013.01);
Abstract

Provided is a light-emitting device of which a resin frame serving as a dam of a sealing resin is not readily deformed. The light-emitting device includes: a planar lead frame configured from first and second metal portions which are spaced apart from each other with an insulating resin interposed therebetween; light-emitting elements mounted on the first metal portion and electrically connected by wires to the first and second metal portions; a first resin frame disposed on the lead frame so as to enclose the light-emitting elements; a sealing resin containing a phosphor for converting the wavelength of light emitted from the light-emitting elements, the sealing resin being filled into a region on the lead frame enclosed by the first resin frame to seal the light-emitting elements; and a second resin frame being harder than the first resin frame and covering an outer surface of the first resin frame at an outer edge of the lead frame.

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