Securing an integrated circuit
US7321522B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2006 |
| Grant date | Jan 22, 2008 |
| Priority date | — |
| Expiry date | Jul 7, 2026 |
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.