Empty page detection
AssigneeMicron Technology, Inc.
InventorKyungjin Kim
Life of this patent
Estimating the term…
Abstract
Aspects of the present disclosure configure a system component, such as a memory sub-system controller, to detect erroneous empty pages. The controller detects a read error associated with reading data from a set of memory components in accordance with an individual read level of a plurality of read levels. In response to detecting the read error, the controller computes one or more check failure unit count values corresponding to the individual read level. The controller compares the one or more check failure unit count values to a threshold value and determines whether the read error corresponds to an empty page read error based on a result of comparing the one or more check failure unit count values to the threshold value.
Claims20
A system comprising:
- a set of memory components;
- and
- a processing device, operatively coupled to the set of memory components, programmed to perform operations comprising:
- detecting a read error associated with reading data from a portion of the set of memory components in accordance with an individual read level of a plurality of read levels;
- and
- in response to detecting the read error:
- applying a read threshold voltage within a range of read levels corresponding to the individual read level to the portion of the set of memory components to read the data from the portion of the set of memory components;
- computing one or more check failure unit count values based on the data that has been read from the portion of the set of memory components based on the applied read threshold voltage corresponding to the individual read level;
- comparing the one or more check failure unit count values to a threshold value;
- and
- determining whether the read error corresponds to an empty page read error based on a result of comparing the one or more check failure unit count values to the threshold value.
A method comprising:
- detecting a read error associated with reading data from a portion of a set of memory components in accordance with an individual read level of a plurality of read levels;
- and
- in response to detecting the read error:
- applying a read threshold voltage within a range of read levels corresponding to the individual read level to the portion of the set of memory components to read the data from the portion of the set of memory components;
- computing one or more check failure unit count values based on the data that has been read from the portion of the set of memory components based on the applied read threshold voltage corresponding to the individual read level;
- comparing the one or more check failure unit count values to a threshold value;
- and
- determining whether the read error corresponds to an empty page read error based on a result of comparing the one or more check failure unit count values to the threshold value.
A non-transitory computer-readable storage medium comprising instructions that, when executed by a processing device, cause the processing device to perform operations comprising:
- detecting a read error associated with reading data from a portion of a set of memory components in accordance with an individual read level of a plurality of read levels;
- and
- in response to detecting the read error:
- applying a read threshold voltage within a range of read levels corresponding to the individual read level to the portion of the set of memory components to read the data from the portion of the set of memory components;
- computing one or more check failure unit count values based on the data that has been read from the portion of the set of memory components based on the applied read threshold voltage corresponding to the individual read level;
- comparing the one or more check failure unit count values to a threshold value;
- and
- determining whether the read error corresponds to an empty page read error based on a result of comparing the one or more check failure unit count values to the threshold value.
Dependencies are inferred from the claim text.