Method of operating nonvolatile memory device
OwnerJung Chul Han, Byoung Kwan Jeonginventors
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Abstract
A method of operating a nonvolatile memory device includes performing a program operation on memory cells included in a selected page, checking whether a verification operation for the programmed memory cells is passed or failed by performing the verification operation, counting a number of error bits for the selected page, if the verification operation is failed, performing an error checking and correction (ECC) algorithm using an error correction circuit, if the counted number of error bits is less than or equal to a number of correctable bits, and storing the counted number of error bits in a specific one of a plurality of memory blocks.
Claims18
A method of operating a nonvolatile memory device, the method comprising:
- performing a program operation on memory cells included in a selected page;
- checking whether a verification operation for the programmed memory cells is passed or failed by performing the verification operation;
- counting a number of error bits for the selected page, if the verification operation is failed;
- performing an error checking and correction (ECC) algorithm using an error correction circuit, if the counted number of error bits is less than or equal to a number of correctable bits;
- and
- storing the counted number of error bits in a specific one of a plurality of memory blocks.
A method of operating a nonvolatile memory device, the method comprising:
- inputting a program command;
- selecting a memory block in which data will be stored, from among a plurality of memory blocks, based on a number of error bits counted in each of the memory blocks;
- and
- performing a program operation on memory cells included in a selected page of the selected memory block.
Dependencies are inferred from the claim text.