Programming memories with multi-level pass signal
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United States of America Patent
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Mar 20, 2018
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app pub date -
Jun 22, 2016
filing date -
Jul 18, 2014
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Abstract
Methods of operating a memory include applying a multi-step pass voltage to a plurality of memory cells selected for a programming operation, applying a programming pulse to the plurality of memory cells selected for the programming operation after applying a voltage level of a particular step of the multi-step pass voltage to the plurality of memory cells selected for the programming operation, applying a particular voltage level to any data lines coupled to a first subset of memory cells of the plurality of memory cells selected for the programming operation prior to applying a voltage level of a certain step of the multi-step pass voltage, and applying the particular voltage level to any data lines coupled to a second subset of memory cells of the plurality of memory cells selected for the programming operation only after applying the voltage level of the certain step of the multi-step pass voltage.
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