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:
Apr. 02, 1991
Filed:
Apr. 13, 1990
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 17 ; 357-4 ; 357 16 ; 357 30 ; 357 61 ;
Abstract
A blue LED which includes a light-emitting layer having a p-n junction makes use of the superlattice structure being formed of a plurality of BP layers and Ga.sub.x Al.sub.1-x N (0.ltoreq.x.ltoreq.1) layers which are alternately stacked, with the Ga.sub.x Al.sub.1-x N (0.ltoreq.x.ltoreq.1) layers having a zinc blende type structure, or else makes use of a Ga.sub.x Al.sub.y B.sub.1-x-y N.sub.z P.sub.1-z (0.ltoreq.x, y, z.ltoreq.1 and x+y.ltoreq.1) mixed crystal layer having a zinc blende type crystal structure.
Izumiya, Toshihide. (1991). Semiconductor light-emitting diode and method of manufacturing the same (U.S. Patent No. 5005057). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5005057
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