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ADAPTIVE READ THRESHOLD VOLTAGE TRACKING WITH CHARGE LEAKAGE MITIGATION USING CHARGE LEAKAGE SETTLING TIME
ADAPTIVE READ THRESHOLD VOLTAGE TRACKING WITH CHARGE LEAKAGE MITIGATION USING CHARGE LEAKAGE SETTLING TIME
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机译:使用电荷泄漏稳定时间来缓解电荷泄漏的自适应读取阈值电压跟踪
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摘要
Adaptive read reference voltage tracking techniques are provided that employ charge leakage mitigation. An exemplary device for use with multi-level memory cells, comprises a controller configured to: after a predefined time interval that approximates a settling time after a programming of the multi-level memory cells until a charge leakage of one or more of the multi-level memory cells has settled, determine a plurality of read reference voltages for the multi-level memory cells using a post-programming adaptive tracking algorithm; and employ the plurality of read reference voltages to read data from the multi-level memory cells. The reference voltage offsets are optionally determined based on a shift in the read reference voltages after the predefined time interval since the programming of the multi-level memory cells.
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