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:
Sep. 10, 1985
Filed:
Feb. 10, 1981
Applicant:
Inventors:
Alexander Colquhoun, Heilbronn-Sontheim, DE;
Erhard Kohn, Leingarten, DE;
Assignee:
TELEFUNKEN electronic GmbH, Heilbronn, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 15 ; 357 14 ; 357 52 ; 357 56 ; 357 71 ; 357 73 ;
Abstract
A varactor or mixer diode comprises a mesa shaped semiconductor element having a p-n junction barrier layer or retifying junction on its upper face and a substrate contact on its opposite face, the substrate contact extending over the side faces of the semiconductor element and ending at a small spacing from the barrier layer or junction.