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. 19, 1982
Filed:
Nov. 23, 1979
Frank Z Hawrylo, Trenton, NJ (US);
Gregory H Olsen, Plainsboro, NJ (US);
RCA Corporation, New York, NY (US);
Abstract
A semiconductor laser diode includes a substrate of indium phosphide of one conductivity type having on a surface thereof an indium phosphide first confinement layer of the same conductivity type followed by an active layer of indium gallium arsenide phosphide and an indium phosphide second confinement layer of the opposite conductivity type. On the second confinement layer is an indium gallium arsenide phosphide capping layer of either conductivity type having a stripe shaped opening therethrough. In the opening in the capping layer is a contact layer of indium gallium arsenide phosphide of the opposite conductivity type. The confinement layers, the active layer and the capping layer are formed by liquid phase epitaxy and the contact layer is formed by vapor phase epitaxy.