Nonvolatile memory apparatus for performing a read operation and a method of operating the same
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United States of America Patent
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Jan 10, 2023
Grant Date -
Aug 12, 2021
app pub date -
Apr 30, 2021
filing date -
Feb 27, 2019
priority date (Note) -
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Abstract
A nonvolatile memory apparatus performs a plurality of read operations by using a plurality of read voltages. A first read operation is performed by applying a first read voltage to a memory cell. A second read operation is selectively performed based on whether a snap-back of the memory cell occurs during the first read operation. The second read operation is performed by applying a second read voltage having a higher voltage level than the first read voltage to the memory cell.
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