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. 08, 2012
Filed:
Jul. 29, 2008
Gerald K Bartley, Rochester, MN (US);
Darryl J. Becker, Rochester, MN (US);
Todd A. Christensen, 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);
John E. Sheets, Ii, Zumbrota, MN (US);
Gerald K Bartley, Rochester, MN (US);
Darryl J. Becker, Rochester, MN (US);
Todd A. Christensen, 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);
John E. Sheets, II, Zumbrota, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and apparatus include conductive material doped within a microchip that accumulates a detectable charge in the presence of ions. Such ions may result from a focused ion beam or other unwelcome technology exploitation effort. Circuitry sensing the charge buildup in the embedded, doped material may initiate a defensive action intended to defeat the tampering operation.