NONVOLATILE MEMORY DEVICE AND METHOD OF CONTROLLING THE SAME
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United States of America Patent
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Issued Date -
Aug 29, 2024
app pub date -
Oct 30, 2023
filing date -
Feb 24, 2023
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Abstract
A method of controlling a nonvolatile memory device, includes: determining, based on a write address, whether selected memory cells of the nonvolatile memory device corresponding to the write address are included in an over-erased group; based on the selected memory cells being included in the over-erased group, performing a preprogram operation to increase threshold voltages of an over-erased state of the selected memory cells; and after completion of the preprogram operation, performing a data program operation to store write data in the selected memory cells.
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