Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Fusible link or intentional destruct circuit
Reexamination Certificate
2008-07-22
2008-07-22
Wells, Kenneth B. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
Fusible link or intentional destruct circuit
C327S526000, C365S225700
Reexamination Certificate
active
07403061
ABSTRACT:
Disclosed are embodiments of an apparatus incorporating a detection circuit adapted for determining the state of selected fuses and a programming circuit for blowing selected fuses on demand. Also, disclosed are embodiments of an associated method. The detection circuit comprises a plurality of fuses in identical signal and reference legs in order to increase the signal margin for detecting blown fuses and/or current sources configured to pass offset currents through the signal and reference legs in order to set the trip point for detecting blown fuses between the un-blown and the minimum blown resistances. Thus, the invention provides the flexibility of single-sided fuse state detection devices with even greater sensitivity than both single-sided and differential fuse state detection device.
REFERENCES:
patent: 5418487 (1995-05-01), Armstrong, II
patent: 5748031 (1998-05-01), Best
patent: 6426668 (2002-07-01), Morrish et al.
patent: 6498526 (2002-12-01), Lim et al.
patent: 6906557 (2005-06-01), Parker et al.
patent: 6919754 (2005-07-01), Kuroki
patent: 6995601 (2006-02-01), Huang et al.
patent: 7215175 (2007-05-01), Mandal et al.
patent: 7221210 (2007-05-01), Parker et al.
Barwin John E.
Lamphier Steven H.
Pilo Harold
Gibb & Rahman, LLC
International Business Machines - Corporation
LeStrange, Esq. Michael
Wells Kenneth B.
LandOfFree
Method of improving fuse state detection and yield in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of improving fuse state detection and yield in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of improving fuse state detection and yield in... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2778788