| US 7,486,585 B2 | ||
| Securing an integrated circuit | ||
| Robert C. Dixon, Austin, Tex. (US); Kirk E. Morrow, Round Rock, Tex. (US); and Phil C. F. Paone, Rochester, Minn. (US) | ||
| Assigned to International Business Machines Corporation, Armonk, N.Y. (US) | ||
| Filed on Oct. 22, 2007, as Appl. No. 11/875,971. | ||
| Application 11/875971 is a continuation of application No. 11/381837, filed on May 05, 2006, granted, now 7,321,522. | ||
| Prior Publication US 2008/0043558 A1, Feb. 21, 2008 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. G11C 17/18 (2006.01) | ||
| U.S. Cl. 365—225.7 [365/185.04; 365/201] | 12 Claims |
| 1. A method for securing an integrated circuit, the method comprising:
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.
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