Patent · US Active

Securing an integrated circuit

US7486585B2 · kind B2 · utility

2Cited by

1References

12Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Robert C. Dixon · Austin, US
Kirk E. Morrow · Round Rock, US
Phil C. Paone · Rochester, US

Key dates

Filing date	Oct 22, 2007
Grant date	Feb 3, 2009
Priority date	—
Expiry date	Oct 22, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG11C29/46
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Securing an integrated circuit, including fabricating the integrated circuit so that the integrated circuit includes at least one efuse that is intended to be always blown during operation of the integrated circuit and the integrated circuit includes security circuitry capable of blowing the efuse and of performing other security related functions; blowing, by the security circuitry of the integrated circuit, the efuse when power is applied to the integrated circuit and prior to performing any other security related functions; and setting, by the security circuitry after blowing the efuse, a security state of the integrated circuit in dependence upon a sensed state of the efuse.

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