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:
Aug. 15, 1989
Filed:
Sep. 28, 1987
Applicant:
Inventors:
Helmut Jorke, Gerstetten, DE;
Johann-Friedrich Luy, Ulm, DE;
Assignee:
Licentia Patent-Verwaltungs-GmbH, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
357-4 ; 357 13 ; 357 16 ;
Abstract
An IMPATT diode having Si-SiGe heterostructure grown on a Si substrate with the SiGe layer being disposed in the generation zone of the IMPATT diode. The SiGe layer may be replaced by a Si/SiGe superlattice.