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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 9240498 B1

PDFFull Text
Expired
Date of Patent:
Jan. 19, 2016

Filed:

Sep. 15, 2014

Optical semiconductor device

Applicant:

Seiko Instruments Inc., Chiba-shi, Chiba, JP;

Inventors:

Hiroyuki Fujita, Chiba, JP;

Sadao Oku, Chiba, JP;

Koji Tsukagoshi, Chiba, JP;

Keiichiro Hayashi, Chiba, JP;

Assignee:

SEIKO INSTRUMENTS INC., , JP;

Attorney:

Adams & Wilks

Primary Examiner:

Phuc Dang

Int. Cl.
CPC ...
H01L 31/0203 (2014.01); H01L 31/0232 (2014.01);
U.S. Cl.
CPC ...
H01L 31/0203 (2013.01); H01L 2224/45144 (2013.01); H01L 2224/45147 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/48247 (2013.01);
Abstract

Phosphate-based glass doped with copper ions having infrared blocking filter characteristics is formed into particles and is mixed with a transparent encapsulating resin to encapsulate a semiconductor element. The glass particles have a particle diameter four times or more as large as a wavelength of infrared radiation to be blocked. An optical semiconductor device can be obtained having a stable filter characteristics thereof even if an incident light angle changes and is resistant to moisture.

Find Patent Forward Citations

Fujita, Hiroyuki. (2016). Optical semiconductor device (U.S. Patent No. 9240498). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9240498

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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