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:
Jan. 03, 2012
Filed:
Mar. 03, 2009
Louis L. Hsu, Fishkill, NY (US);
David W. Kruger, Pleasant Valley, NY (US);
James S. Mason, Eastleigh, GB;
Richard W. Oldrey, Clintondale, NY (US);
Louis L. Hsu, Fishkill, NY (US);
David W. Kruger, Pleasant Valley, NY (US);
James S. Mason, Eastleigh, GB;
Richard W. Oldrey, Clintondale, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and tamper resistant circuit for resisting tampering including reverse engineering in a semiconductor chip, and a design structure on which the subject circuit resides are provided. A sensing device for detecting a chip tampering state is formed with the semiconductor chip including the circuitry to be protected. A tamper resistant control signal generator is coupled to the sensing unit for generating a tamper resistant control signal responsive to a detected chip tampering state. A functional operation inhibit circuit is coupled to the tamper resistant control signal generator for inhibiting functional operation of the circuitry to be protected responsive to the tamper resistant control signal.