Device for protecting an integrated circuit against a laser...

Details Device for protecting an integrated circuit against a laser... Device for protecting an integrated circuit against a laser...

2009-04-01

2010-12-07

Tran, Anh Q (Department: 2819)

Electronic digital logic circuitry

Security

C326S009000, C326S014000, C326S101000

Reexamination Certificate

active

07847581

ABSTRACT:
An integrated circuit including a substrate of a semiconductor material having first and second opposite surfaces and including active areas leveling the first surface. The integrated circuit includes a device of protection against laser attacks, the protection device includes at least one first doped region extending between at least part of the active areas and the second surface, a device for biasing the first region, and a device for detecting an increase in the current provided by the biasing device.

REFERENCES:
patent: 7473958 (2009-01-01), Wagner et al.
patent: 2002/0130248 (2002-09-01), Bretschneider et al.
patent: 2006/0081912 (2006-04-01), Wagner et al.
patent: 2007/0171588 (2007-07-01), Gehle et al.
patent: 1020040096 (2005-06-01), None
French Search Report dated Dec. 11, 2008 from French Patent Application No. 08/52215.

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