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METHOD OF ERASING DATA IN NONVOLATILE MEMORY DEVICE, NONVOLATILE MEMORY DEVICE PERFORMING THE SAME AND MEMORY CONTROLLER PERFORMING THE SAME
METHOD OF ERASING DATA IN NONVOLATILE MEMORY DEVICE, NONVOLATILE MEMORY DEVICE PERFORMING THE SAME AND MEMORY CONTROLLER PERFORMING THE SAME
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机译:擦除非易失性存储器件中的数据的方法,执行相同和存储器控制器的非易失性存储器件
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摘要
In a method of erasing data in a nonvolatile memory device including one or more memory blocks, a plurality of memory cells are disposed in a vertical direction in each memory block. An erase loop is performed once or more on an entire of a first memory block in the one or more memory blocks. After the erase loop is successfully completed, a first partial verification operation is performed on one or more groups of a plurality of groups in the first memory block. After the first partial verification operation is successfully completed, it is determined whether a second partial verification operation is required for a group of the one or more groups. The second partial verification operation is performed on one or more subgroups of a plurality of subgroups in a first group requiring the second partial verification operation among the plurality of groups.
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