Circuits and methods of detecting at least partial breakdown of canary circuits
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United States of America Patent
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Sep 3, 2024
Grant Date -
Oct 5, 2023
app pub date -
Mar 30, 2022
filing date -
Mar 30, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
According to one implementation of the present disclosure, a circuit comprises: a memory array comprising one or more groupings of bitcells, one or more bitlines, and one or more wordlines; and one or more canary circuits coupled to the memory array, wherein each of the canary circuits is configured to predict at least partial breakdown of a corresponding grouping of bitcells in the memory array. According to one implementation of the present disclosure, a method includes: providing an excitation stress on one or more canary circuits corresponding to a grouping of bitcells in a memory array; detecting at least a partial breakdown of the one or more canary circuits; and generating a flag.
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