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US 10,593,417 B2Granted
Memory system and operating method for the same
AssigneeSK hynix Inc.
InventorJee-Yul Kim
Life of this patent
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Abstract
A memory system comprises a memory device including a plurality of memory blocks, the memory device being configured to perform a program operation and a program verify operation to program data to the memory blocks, and a controller configured to detect program error bit information as a result of the program verify operation, select a victim memory block among the memory blocks based on the detected program error bit information, and copy programmed data of the victim memory block.
Claims18
A memory system comprising:
- a memory device including a plurality of memory blocks, the memory device being configured to perform a program operation and a program verify operation to program data to the memory blocks and detect a number of program error bits for a page of the respective memory blocks by counting a program-failed memory cell of the page within an error-correctable range, the program operation of the page being verified as successful, and being configured to provide the detected number of program error bits of the page as program error bit information;
- and
- a controller configured to manage the program error bit information by summing up the numbers of program error bits of the page for the respective memory blocks, select a victim memory block among the memory blocks based on the program error bit information, and copy programmed data of the victim memory block.
An operating method for a memory system, comprising:
- performing a program operation and a program verify operation to program data to a plurality of memory blocks and detect a number of program error bits for a page of the respective memory blocks by counting a program-failed memory cell of the page within an error-correctable range, the program operation of the page being verified as successful, and being configured to provide the detected number of program error bits of the page as program error bit information;
- managing the program error bit information by summing up the number of program error bits of the page for the respective memory block;
- selecting a victim memory block among the plurality of memory blocks based on the program error bit information;
- and
- copying data of the victim memory block.
2 more elements
Dependencies are inferred from the claim text.