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:
Jan. 30, 1996
Filed:
Mar. 11, 1994
Masayuki Ishikawa, Yokohama, JP;
Yukie Nishikawa, Narashino, JP;
Shinji Saito, Kawasaki, JP;
Peter J Parbrook, Kawasaki, JP;
Masaaki Onomura, Tokyo, JP;
Koichi Nitta, Yokohama, JP;
Genichi Hatakoshi, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
This invention provides a semiconductor light-emitting device including a semiconductor substrate consisting of a compound semiconductor of elements in the third and fifth groups of the period table, a first compound semiconductor layer formed directly on at least a portion of the semiconductor substrate and consisting of a compound semiconductor containing at least In and P, and a second compound semiconductor formed directly on the first compound semiconductor layer and consisting of a compound semiconductor of elements in the second and sixth groups of the periodic table. With this arrangement, it is possible to sufficiently prevent the occurrence of defects in the interface between the semiconductor substrate and the second compound semiconductor layer consisting of the compound semiconductor of the elements in the second and sixth groups of the periodic table.