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:
May. 08, 1984
Filed:
Sep. 21, 1981
Applicant:
Inventors:
Aland K Chin, Berkeley Heights, NJ (US);
Michael A DiGiuseppe, Succasunna, NJ (US);
Henryk Temkin, New Providence, NJ (US);
Assignee:
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 17 ; 357 16 ;
Abstract
A light emitting diode designed to emit primarily at 1.3 microns comprises a crystal having a plurality of lattice matched layers including an n-type indium phosphide front surface layer, an n-type indium phosphide buffer layer, a p-type indium gallium arsenide phosphide active layer, a p-type indium phosphide confining layer and an indium gallium arsenide back surface layer, and an annular front contact and a limited area back contact to the crystal.