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:
Jun. 28, 1994
Filed:
Mar. 12, 1993
Applicant:
Inventor:
Atsushi Kamata, Chigasaki, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
257 96 ; 257 94 ; 257103 ; 257614 ;
Abstract
A light-emitting diode has a GaAs substrate, and two ZnSe layers formed on the substrate and having a pn junction. An AuZn electrode is formed on the upper one of the ZnSe layers with a (ZnSe).sub.x (GaAs).sub.(1-x) ohmic contact layer interposed therebetween. The coefficient x of the composition formula is substantially continuously varied from 1.0 to 0 from the ZnSe layer side. An AuGe electrode is formed on the lower surface of the GaAs substrate. The (ZnSe).sub.x (GaAs).sub.(1-x) layer reduces the resistance between the ZnSe layer and AuZn electrode, and also prevents Ga atoms from diffusing into the ZnSe layer.