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US 2023/0410875 A1Published application
Memory device and defense method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsChanghwi Park, Junyoung Ko, Jungmin Bak
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Abstract
A defense method of a memory device according to an embodiment includes obtaining a plurality of defense types to refresh a row of a memory cell array that is subjected to an attack, determining respective operation times for the defense types, and performing a refresh operation for the row of the memory cell array by switching among the defense types based on the respective operation times that were determined.
Claims20
A defense method of a memory device, the defense method comprising:
- executing, by a processor, computer readable program instructions embodied in a non-transitory storage medium to perform operations comprising:
- obtaining a plurality of defense types to refresh a row of a memory cell array that is subjected to an attack;
- determining respective operation times of the defense types;
- and
- performing a refresh operation for the row of the memory cell array by switching among the defense types based on the respective operation times that were determined.
2 more elements
A defense method for a memory device, the defense method comprising:
- executing, by a processor, computer readable program instructions embodied in a non-transitory storage medium to perform operations comprising:
- performing a refresh operation for one or more memory cells of the memory device using a first defense type that is configured to defend against a first attack command sequence;
- and
- performing the refresh operation using a second defense type that is configured to defend against a second attack command sequence that is different than the first attack command sequence.
1 more element
A memory device comprising:
- a memory cell array;
- and
- a defense circuit coupled to the memory cell array, wherein the defense circuit is configured to obtain a plurality of defense types, determine respective operation times for the defense types, and perform a refresh operation for the memory cell array by switching among the defense types based on the respective operation times that were determined.
Dependencies are inferred from the claim text.