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:
Aug. 09, 2005
Filed:
Apr. 30, 2003
Applicants:
Takashi Matsuoka, Kanagawa, JP;
Hiroshi Okamoto, Kanagawa, JP;
Inventors:
Takashi Matsuoka, Kanagawa, JP;
Hiroshi Okamoto, Kanagawa, JP;
Assignee:
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L033/00 ;
U.S. Cl.
CPC ...
Abstract
A semiconductor light-emitting device of this invention includes at least a first cladding layer formed on a substrate, a light-emitting structure including an active layer made of InGaAlN (0≦X, Y≦1, 0≦X+Y<1) and formed on the first cladding layer, and a second cladding layer formed on the light-emitting structure. The active layer is made of a material with a small Auger effect and a small dependency of its band gap energy on environment temperature.