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:
Mar. 09, 1982
Filed:
Apr. 22, 1980
Applicant:
Inventors:
Masaaki Ohsima, Yokohama, JP;
Isamu Akasaki, machida, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 17 ; 357 16 ; 357 61 ;
Abstract
An electroluminescent element comprising an n-type GaAs substrate, a GaAsP grading layer and an n-type GaAsP constant layer both of which are grown on the substrate epitaxially in this order, and an In.sub.x Ga.sub.1-x As.sub.y P.sub.1-y layer formed on top of the constant layer where 0.002.ltoreq.x.ltoreq.0.08 and 0.2.ltoreq.y.ltoreq.0.4.