Retention drift correction in non-volatile memory arrays
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United States of America Patent
Stats
-
Mar 14, 2023
Grant Date -
Oct 27, 2022
app pub date -
Apr 23, 2021
filing date -
Apr 23, 2021
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Methods and architectures for refreshing memory elements in a memory array may initialize a reference array that stores each of the possible values stored in the memory element. The values in the memory array and the reference array will drift in parallel over time. To perform a refresh, the drifted values may be read from the reference array and mapped to the original values that were stored when the reference array was initialized. Next, each value may be read from the memory array and matched with a corresponding value from the reference array. The known original value stored in the reference array can then be used to refresh the corresponding memory element in the memory array.
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International Classification(s)
- 2021 Application Filing Year
- G06N Class
- 16935 Applications Filed
- 6768 Patents Issued To-Date
- 39.97 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- G06N Class
- 0 % this patent is cited more than
- 2 Age
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