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:
Oct. 07, 1986
Filed:
Mar. 22, 1983
Applicant:
Inventors:
Robert M Biefeld, Albuquerque, NM (US);
Ian J Fritz, Albuquerque, NM (US);
Paul L Gourley, Albuquerque, NM (US);
Gordon C Osbourn, Albuquerque, NM (US);
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01S / ;
U.S. Cl.
CPC ...
357 16 ; 357 17 ; 357 30 ; 357 61 ; 372 45 ;
Abstract
A semiconductor optical device which includes a superlattice having direct transitions between conduction band and valence band states with the same wave vector, the superlattice being formed from a plurality of alternating layers of two or more different materials, at least the material with the smallest bandgap being an indirect bandgap material.