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:
Feb. 24, 1987
Filed:
Nov. 19, 1985
Applicant:
Inventors:
Richard A Davies, Harrow, GB;
Michael J Kelly, London, GB;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; H01L / ;
U.S. Cl.
CPC ...
428213 ; 357-4 ; 357 30 ; 427 87 ; 428901 ;
Abstract
A semiconductor device incorporating two superlattices in the GaAs/AlGaAs system separated by a relatively thick layer of GaAlAs is described. The device displays negative differential conductance.