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US 2019/0196727 A1Published application
Memory system and method for operating the same
AssigneeSK hynix Inc.
InventorSe-Hyun KIM
Life of this patent
Estimating the term…
Abstract
A memory system includes: a memory device including a plurality of memory blocks; and a controller suitable for selecting one or more first memory blocks based on a predetermined condition among the plurality of the memory blocks in a booting section, and increasing a read reclaim count value of one or more second memory blocks among the one or more first memory blocks for which a number of failed bits of read data exceeds a predetermined threshold.
Claims21
-20. (canceled)
A device comprising:
- a memory having a plurality of memory blocks each associated with a read reclaim count value;
- and
- a memory controller configured to perform operations including:
- selecting one or more of the memory blocks;
- determining that the read reclaim count value of at least one of the selected memory blocks is to be adjusted;
- and
- for each read reclaim count value being adjusted:
- determining an adjustment value by comparing a current read reclaim count value of the corresponding memory block to one or more threshold values;
- and
- calculating an adjusted read reclaim count value of the corresponding memory block by adding the adjustment value to the current read reclaim count value of the corresponding memory block.
7 more elements
A device comprising:
- a memory;
- and
- a memory controller configured to perform operations including:
- selecting a plurality of word lines of the memory, wherein the selected word lines are coupled to one or more memory blocks of the memory;
- determining that a memory block of the one or more memory blocks satisfies a read data failure condition;
- determining which number range of multiple number ranges that a read reclaim count value of the memory block corresponds to;
- and
- increasing the read reclaim count value of the memory block by an adjustment value associated with the determined number range.
5 more elements
A method comprising:
- selecting a first memory block of a memory;
- determining the first memory block has a first number of failed read data bits that is above a predetermined threshold;
- determining a first read reclaim count value of the first memory block;
- increasing the first read reclaim count value of the first memory block by a first adjustment value;
- selecting a second memory block of the memory;
- determining the second memory block has a second number of failed read data bits that is above the predetermined threshold;
- determining a second read reclaim count value of the second memory block, the second read reclaim count value being greater than the first read reclaim count value;
- and
- increasing the second read reclaim count value of the second memory block by a second adjustment value, the second adjustment value being greater than the first adjustment value.
6 more elements
Dependencies are inferred from the claim text.