Adaptive read voltage threshold calibration in non-volatile memory
A non-volatile memory includes a plurality of physical pages each assigned to one of a plurality of page groups. A controller of the non-volatile memory performs a first calibration read of a sample physical page of a page group of the non-volatile memory. The controller determines if an error metri...
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| creator | Papandreou, Nikolaos Pletka, Roman A Fisher, Timothy Tomic, Sasa Pozidis, Charalampos Fry, Aaron D Ioannou, Nikolas |
| description | A non-volatile memory includes a plurality of physical pages each assigned to one of a plurality of page groups. A controller of the non-volatile memory performs a first calibration read of a sample physical page of a page group of the non-volatile memory. The controller determines if an error metric observed for the first calibration read of the sample physical page satisfies a calibration threshold. The controller calibrates read voltage thresholds of the page group utilizing a first calibration technique based on a determination that the error metric satisfies the calibration threshold and calibrates read voltage thresholds of the page group utilizing a different second calibration technique based on a determination that the error metric does not satisfy the calibration threshold. |
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| subjects | CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING INFORMATION STORAGE PHYSICS STATIC STORES |
| title | Adaptive read voltage threshold calibration in non-volatile memory |
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