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. 06, 1998
Filed:
Nov. 18, 1996
Applicant:
Inventor:
Jean-Yves Duboz, Cachan, FR;
Assignee:
Thomson-CSF, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
257 21 ; 257 96 ; 257 98 ; 257184 ; 257432 ;
Abstract
An optoelectronic quantum well device comprises a stack of layers that have different gap widths and constitute quantum wells possessing, in the conduction band, at least two permitted energy levels, this stack of layers being included between two reflection means. The device also comprises a diffraction grating between one of the mirrors and the stack of layers.