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:
May. 31, 2011
Filed:
Jul. 29, 2008
Gerald K Bartley, Rochester, MN (US);
Darryl J Becker, Rochester, MN (US);
Paul E Dahlen, Rochester, MN (US);
Philip R Germann, Oronoco, MN (US);
Andrew B Maki, Rochester, MN (US);
Mark O Maxson, Mantorville, MN (US);
Gerald K Bartley, Rochester, MN (US);
Darryl J Becker, Rochester, MN (US);
Paul E Dahlen, Rochester, MN (US);
Philip R Germann, Oronoco, MN (US);
Andrew B Maki, Rochester, MN (US);
Mark O Maxson, Mantorville, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An apparatus and method detect microchip tampering by including a capacitance circuit that comprises a protective cover. Dielectric material may be sandwiched between the cover and a backside metal layer, which may be proximate a protected surface of the microchip. Changes in the capacitance of the above circuit caused by alteration of the cover or other component of the capacitance circuit may be sensed and prompt defensive action.