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:
Apr. 27, 2007
Applicants:
Nadine Buard, Meudon, FR;
Cedric Ruby, Lyons, FR;
Florent Miller, Levallois, FR;
Imad Lahoud, Paris, FR;
Inventors:
Nadine Buard, Meudon, FR;
Cedric Ruby, Lyons, FR;
Florent Miller, Levallois, FR;
Imad Lahoud, Paris, FR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/003 (2006.01); H01L 31/101 (2006.01);
U.S. Cl.
CPC ...
Abstract
In order to protect an integrated circuit provided with a cryptoprocessor from attacks aiming to reveal secrets, it is anticipated to use a component sensitive to the activation of a parasitic (latchup) thyristor and/or to the activation of a parasitic bipolar transistor, or to design a circuit having this property. If the component is stressed due to the presence of this circuit, it is immediately deactivated, actually preventing the revelation of the secrets thereof.