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:
Dec. 03, 1991
Filed:
Dec. 10, 1990
Fumihiro Konushi, Hirakata, JP;
Hiroshi Nakatu, Tenri, JP;
Kazuhiko Inoguchi, Nara, JP;
Toshiyuki Okumura, Tenri, JP;
Akinori Seki, Nara, JP;
Haruhisa Takiguchi, Nara, JP;
Chitose Nakanishi, Nara, JP;
Satoshi Sugahara, Nara, JP;
Hiroaki Kudo, Tenri, JP;
Sharp Kabushiki Kaisha, , JP;
Abstract
A semiconductor laser device having a mesa stripe whose side faces are facets of {111} planes is disclosed. In the laser device, a current blocking layer is formed on a semiconductor substrate whose main surface is a (100) plane, and a channel which is oriented along the <011> direction is formed in the current blocking layer. The mesa stripe is formed on the substrate within the channel by a selective growth technique. The mesa stripe has a multilayer structure including an active layer and is covered by a burying layer.