Method and circuit for fuse programming and endpoint detection

Details Method and circuit for fuse programming and endpoint detection Method and circuit for fuse programming and endpoint detection

2006-03-07

2006-03-07

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

07009443

ABSTRACT:
In one embodiment, a system comprises a programming unit coupled to at least one programmable fuse and configured to program the programmable fuse. In addition, the system comprises a monitoring circuit coupled to the programmable fuse and configured to monitor electrical characteristics associated with the programmable fuse while the programmable fuse is being programmed. In one embodiment, the monitoring circuit is configured to detect a voltage associated with the programmable fuse. Furthermore, the monitoring circuit is configured to compare the detected voltage associated with the programmable fuse with a predetermined voltage value (i.e., endpoint detection). If the detected voltage is equal to or less than the predetermined voltage value, the monitoring circuit is configured to change a state of a control signal to stop the programming of the programmable fuse. Otherwise, the programming unit continues to program the programmable fuse.

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