Low voltage programmable eFuse with differential sensing scheme

Details Low voltage programmable eFuse with differential sensing scheme Low voltage programmable eFuse with differential sensing scheme

2006-08-29

2006-08-29

Zweizig, Jeffrey (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Fusible link or intentional destruct circuit

Reexamination Certificate

active

07098721

ABSTRACT:
An electronic fuse structure is disclosed for integrated circuits that is programmable with low voltage and incorporates a differential sensing scheme. The programming step is performed at about 1.5 times Vdd while the sense operation is performed at Vdd, which limits the resistance variation through the electronic fuse caused by the sense operation. During the sense operation a gating transistor emulates the voltage drop across a fuse select transistor for the case of an intact fuse. A circuit and method for characterizing the resistance of the electronic fuse is also disclosed.

REFERENCES:
patent: 4829481 (1989-05-01), Johnson et al.
patent: 5459423 (1995-10-01), Nozawa et al.
patent: 5583463 (1996-12-01), Merritt
patent: 5907513 (1999-05-01), Kato
patent: 6011428 (2000-01-01), Tsukude et al.
patent: 6255894 (2001-07-01), Cutter et al.
patent: 6489832 (2002-12-01), Kim et al.
patent: 6498526 (2002-12-01), Lim et al.
patent: 6566937 (2003-05-01), Mori et al.
patent: 6933742 (2005-08-01), Wallstab
patent: 2004/0046601 (2004-03-01), Jung et al.
patent: 2004/0119523 (2004-06-01), Koo
patent: 2005/0151578 (2005-07-01), Huang et al.
patent: 2005/0212584 (2005-09-01), Parker et al.
patent: 2005/0285663 (2005-12-01), Newman

Affiliated with

Also associated with

Rating

Low voltage programmable eFuse with differential sensing scheme does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low voltage programmable eFuse with differential sensing scheme, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low voltage programmable eFuse with differential sensing scheme will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3657995