Erase speed based word line control
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United States of America Patent
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May 28, 2019
Grant Date -
Dec 28, 2017
app pub date -
Jun 27, 2016
filing date -
Jun 27, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
Apparatuses, systems, methods, and computer program products are disclosed for erase depth control. One apparatus includes a block of non-volatile storage cells. A controller is configured to perform a first erase operation on a block of non-volatile storage cells. A controller for a block is configured to determine a first set of storage cells of the block having a faster erase speed than a second set of storage cells of the block based on a verify voltage threshold. A controller for a block is configured to perform a second erase operation on the block using different voltages for a first set of storage cells and a second set of storage cells of the block.
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