Cross-point memory read technique to mitigate drift errors
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United States of America
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Feb 18, 2025
Grant Date -
Dec 29, 2022
app pub date -
Jun 25, 2021
filing date -
Jun 25, 2021
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Abstract
A read technique for both SLC (single level cell) and MLC (multi-level cell) cross-point memory can mitigate drift-related errors with minimal or no drift tracking. In one example, a read at a higher magnitude voltage is applied first, which causes the drift for cells in a lower threshold voltage state to be reset. In one example, the read at the first voltage can be a full float read to minimize disturb. A second read can then be performed at a lower voltage without the need to adjust the read voltage due to drift.
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