MEMORY DEVICE AND OPERATING METHOD FOR MEMORY DEVICE
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United States of America Patent
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Issued Date -
Mar 27, 2025
app pub date -
Sep 26, 2023
filing date -
Sep 26, 2023
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Abstract
A memory device and an operating method for the memory device are provided. The memory device includes a memory array and a control circuit. The memory array includes memory blocks. Each of the memory blocks is, for example a three-dimensional NAND flash memory block. The memory device provides a storage media with high-performance and high-capacity. The control circuit provides a first erasing voltage to perform a first erasing operation on target memory cell strings of a selected memory block in the memory blocks, performs a programming operation on the target memory cell strings after the first erasing operation, and provides a second erasing voltage to perform a second erasing operation on at least one part of memory cells of each of the target memory cell strings after the programming operation. The second erasing voltage is lower than the first erasing voltage.
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