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:
Nov. 07, 2000
Filed:
Feb. 17, 1998
Applicant:
Inventors:
Atsushi Yoshinaga, Chichibu, JP;
Koichi Hasegawa, Chichibu, JP;
Assignee:
Showa Denko K.K., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257 94 ; 438 46 ;
Abstract
A GaP green light-emitting diode includes an n-type GaP single-crystal substrate on which is formed at least an n-type GaP layer, a nitrogen-doped n-type GaP layer and a nitrogen-doped p-type GaP layer. The concentration of carbon and/or sulfur in the nitrogen-doped n-type GaP layers is controlled to be not more than 6.times.10.sup.15 cm.sup.-3.