Fuse circuit

Details Fuse circuit Fuse circuit

2006-01-31

2006-01-31

Mai, Son (Department: 2827)

Static information storage and retrieval

Read/write circuit

Having fuse element

C365S096000, C327S525000

Reexamination Certificate

active

06992945

ABSTRACT:
One fuse set is constituted of a plurality of fuse blocks. Each of the blocks includes a sub-fuse set constituted of fuse elements electrically programmable, and a program control circuit which controls programming of the fuse elements. One of the fuse elements is an enable bit representing validity/invalidity of the sub-fuse set. One fuse block becoming an object of the programming is determined in accordance with a value of the enable bit.

REFERENCES:
patent: 5668818 (1997-09-01), Bennett et al.
patent: 6388941 (2002-05-01), Otori et al.
patent: 6462985 (2002-10-01), Hosono et al.
patent: 6542419 (2003-04-01), Hasegawa
patent: 6747481 (2004-06-01), Pitts
patent: 6876594 (2005-04-01), Griesmer et al.
patent: 6882592 (2005-04-01), Noguchi et al.
patent: 2002-76126 (2002-03-01), None
patent: 2002-368096 (2002-12-01), None
U.S. Appl. No. 10/851,143, filed May 24, 2004, Otsuka et al.
U.S. Appl. No. 10/885,718, filed Jul. 8, 2004, Otsuka.

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