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. 14, 1990
Filed:
Apr. 12, 1989
Applicant:
Inventor:
Koichi Imanaka, Kyoto, JP;
Assignee:
Omron Tateisi Electronics Co., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
372 45 ; 357-4 ; 357 17 ; 372 46 ;
Abstract
A surface-emitting semiconductor laser having a lower reflection mirror including a semiconductor multilayer disposed on an n-type substrate so as to form an upper reflection mirror with TiPtAu such that a double heterojunction between the lower and upper reflection mirrors is configured in a columnar shape and that an insulating material is buried in a periphery of the double heterojunction. The non-alloyed metal of TiPtAu serves three functions of an ohmic metal, a reflective layer, and an etching mask.