Monitoring the threshold voltage of frequently read cells

Details Monitoring the threshold voltage of frequently read cells Monitoring the threshold voltage of frequently read cells

2007-03-20

2007-03-20

Tran, Michael (Department: 2827)

Static information storage and retrieval

Floating gate

Particular biasing

C365S185090

Reexamination Certificate

active

11104824

ABSTRACT:
A canary cell may be used in a semiconductor memory to indicate an incipient failure. For example, the canary cell may be provided on rows in a flash memory. Before a read disturb occurs, the canary cell may first sense the condition, for example, because it may be biased with a higher drain bias and is, therefore, more susceptible to the read disturb problem.

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U.S. Appl. No. 10/999,598, filed Nov. 30, 2004, Christian A. Camarce et al..,Analog Counter Using Memory Cell(ITL.1196US).

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