Patent · US Active

Device for protecting an integrated circuit against a laser attack

US7847581B2 · kind B2 · utility

11Cited by

1References

16Claims

0Family size

Assignee

STMicroelectronics (Rousset) SAS · FR

Inventors

Mathieu Lisart · Aix-en-Provence, FR
Vincent Pouget · Talence, FR

Key dates

Filing date	Apr 1, 2009
Grant date	Dec 7, 2010
Priority date	—
Expiry date	Apr 1, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH01L2924/0002
WIPO fieldSemiconductors
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.