Determining bias information for offsetting operating variations in memory cells
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United States of America Patent
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Jun 28, 2016
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app pub date -
Nov 20, 2015
filing date -
Feb 23, 2012
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Abstract
Disclosed is an apparatus and method for determining memory cell bias information for use in memory operations. One or more memory die are selected from a group of memory die, and one or more memory blocks selected from the selected one or more memory die. A group of cells within the selected memory blocks are programmed and cycled. Bias values are generated based on comparing one or more program levels associated with respective wordlines with predetermined programming levels. The bias values are stored lookup table that is configured to be accessible at runtime by a memory controller for retrieval of the bias value during a memory operation.
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