US 12,002,531 B2 · Techniques for retiring blocks of a memory system

Abstract

Methods, systems, and devices for techniques for retiring blocks of a memory system are described. In some examples, aspects of a memory system or memory device may be configured to determine an error for a block of memory cells. Upon determining the occurrence of the error, the memory system may identify one or more operating conditions associated with the block. For example, the memory system may determine a temperature of the block, a cycle count of the block, a quantity of times the block has experienced an error, a bit error rate of the block, and/or a quantity of available blocks in the associated system. Depending on whether a criteria associated with a respective operating condition is satisfied, the block may be enabled or retired.

Claims25

Dependent claims

A memory system, comprising:

one or more memory devices comprising a block of memory cells;
and
processing circuitry coupled with the one or more memory devices and configured to cause the memory system to:
determine an occurrence of at least one error for the block of memory cells;
select one or more operating conditions of a plurality of operating conditions associated with the block of memory cells based at least in part on determining the occurrence of the at least one error;
determine whether to retire the block of memory cells based at least in part on determining the occurrence of the at least one error and selecting the one or more operating conditions associated with the block of memory cells;
and
retire the block of memory cells based at least in part on the block of memory cells including the at least one error and the one or more operating conditions satisfying a respective criteria.

5 more elements

A non-transitory computer-readable medium storing code comprising instructions which, when executed by one or more processors of a memory system, cause the memory system to:

determine an occurrence of at least one error for a block of memory cells of the memory system;
select one or more operating conditions of a plurality of operating conditions associated with the block of memory cells of the memory system based at least in part on determining the occurrence of the at least one error;
determine whether to retire the block of memory cells based at least in part on determining the occurrence of the at least one error and selecting the one or more operating conditions associated with the block of memory cells of the memory system;
and
retire the block of memory cells based at least in part on the block of memory cells including the at least one error and the one or more operating conditions satisfying a respective criteria.

2 more elements

Dependencies are inferred from the claim text.

Techniques for retiring blocks of a memory system

Life of this patent

Techniques for retiring blocks of a memory system

Life of this patent

Abstract

Claims25