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. 22, 1996
Filed:
Apr. 27, 1995
Applicant:
Inventors:
Akira Ishibashi, Kanagawa, JP;
Satoshi Ito, Kanagawa, JP;
Hiroyuki Okuyama, Kanagawa, JP;
Kazushi Nakano, Tokyo, JP;
Kenji Kondo, Kanagawa, JP;
Reiko Takeishi, Tokyo, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01S / ;
U.S. Cl.
CPC ...
257103 ; 257101 ; 257102 ; 372 45 ; 372 46 ;
Abstract
A lifetime of a II/VI-compound semiconductor light emitting device can be extended. The II/VI-compound semiconductor light emitting device includes an active layer (4) and a p-side cladding layer (6). An active-layer side portion (26) of the p-side cladding layer (6) is formed as a lightly impurity-doped region or a non-doped region.