Security circuit having an electrical fuse ROM

Details Security circuit having an electrical fuse ROM Security circuit having an electrical fuse ROM

2011-05-24

2011-05-24

Cho, James H. (Department: 2819)

Cryptography

Key management

Key distribution

C380S278000, C380S277000, C380S044000, C326S008000, C713S194000, C713S189000

Reexamination Certificate

active

07949136

ABSTRACT:
A security circuit includes an electrical fuse read only memory (ROM) including a plurality of electrical fuse units. The electrical fuse units are arranged to correspond to bit values of an initial security key before the electrical fuse ROM is programmed.

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patent: 6621425 (2003-09-01), Maeda
patent: 7795899 (2010-09-01), Grohoski et al.
patent: 2002/0024453 (2002-02-01), Maeda
patent: 2003/0154384 (2003-08-01), Mueller
patent: 2010/0183154 (2010-07-01), Graunke
patent: 2002-73424 (2002-03-01), None

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