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:
Dec. 17, 2002
Filed:
Sep. 20, 2000
Jan Otterstedt, Munich, DE;
Michael Richter, Ottobrunn, DE;
Michael Smola, Munich, DE;
Martin Eisele, Munich, DE;
Other;
Abstract
The invention is directed to a protective circuit for an integrated circuit . This protective circuit is preferably arranged in a plurality of circuit levels under and/or above the intergrated circuit . It exhibits a plurality of interconnects that are charged with different signals of one or more signal generators. The different signals, after traversing the interconnects , are analyzed with one or more detectors in that the signals received by detectors are respectively compared to rated reference signals, and an alarm signal is forwarded to the integrated circuit given the presence of a significant difference. On the basis of this alarm signal, the integrated circuit is switched into a security mode that makes an analysis or a manipulation of the integrated circuit practically impossible.