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US 9,436,549 B2Granted
Storage module and method for improved error correction by detection of grown bad bit lines
AssigneeSanDisk Technologies LLC
InventorsDaniel E. Tuers, Abjiheet Manohar
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Abstract
In one embodiment, a storage module comprises a controller and a memory having a plurality of bit lines. The controller detects an uncorrectable error in a code word read from the memory, determines location(s) of grown bad bit line(s) that contributed to the error in the code word being uncorrectable, and uses the determined location(s) of the grown bad bit line(s) to attempt to correct the error in the code word.
Claims20
A storage module comprising:
- a memory having a plurality of bit lines;
- and
- a controller in communication with the memory, wherein the storage controller is configured to:
- detect an uncorrectable error in a code word read from the memory;
- determine at least one location of at least one grown bad bit line that contributed to the error in the code word being uncorrectable;
- and
- use the determined at least one location of the at least one grown bad bit line to attempt to correct the error in the code word.
4 more elements
A method for improved error correction by detection of at least one grown bad bit line, the method comprising:
- performing the following in a storage module comprising a memory having a plurality of bit lines:
- detecting an uncorrectable error in a code word read from the memory;
- determining at least one location of at least one grown bad bit line that contributed to the error in the code word being uncorrectable;
- and
- using the determined at least one location of the at least one grown bad bit line to attempt to correct the error in the code word.
2 more elements
Dependencies are inferred from the claim text.