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:
Oct. 26, 2010
Filed:
Aug. 06, 2008
Masanori Minamio, Osaka, JP;
Noriyuki Yoshikawa, Osaka, JP;
Shinichi Ijima, Osaka, JP;
Toshiyuki Fukuda, Kyoto, JP;
Masanori Minamio, Osaka, JP;
Noriyuki Yoshikawa, Osaka, JP;
Shinichi Ijima, Osaka, JP;
Toshiyuki Fukuda, Kyoto, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A semiconductor device includes an optical semiconductor element, a package including a base made of a metal for mounting the optical semiconductor element, and a cap for encapsulating the optical semiconductor element and a gas by covering the package and the optical semiconductor element. The gas encapsulated with the package has an oxygen concentration not less than 15% and less than 30% and has a dew-point not less than −15° C. and not more than −5° C.