ERROR DETECTION/CORRECTION BASED MEMORY MANAGEMENT
First Claim
1. A method for error detection/correction based memory management, comprising:
- performing a read operation with respect to a particular group of memory cells of a memory device; and
if the read operation results in an uncorrectable error, determining whether to retire the particular group of memory cells in response to a status of an indicator corresponding to the particular group of memory cells, wherein the status of the indicator indicates whether the particular group of memory cells has a previous uncorrectable error associated therewith.
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Accused Products
Abstract
The present disclosure includes methods, devices, and systems for error detection/correction based memory management. One embodiment includes performing a read operation with respect to a particular group of memory cells of a memory device and, if the read operation results in an uncorrectable error, determining whether to retire the particular group of memory cells in response to a status of an indicator corresponding to the particular group of memory cells, wherein the status of the indicator indicates whether the particular group of memory cells has a previous uncorrectable error associated therewith.
36 Citations
34 Claims
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1. A method for error detection/correction based memory management, comprising:
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performing a read operation with respect to a particular group of memory cells of a memory device; and if the read operation results in an uncorrectable error, determining whether to retire the particular group of memory cells in response to a status of an indicator corresponding to the particular group of memory cells, wherein the status of the indicator indicates whether the particular group of memory cells has a previous uncorrectable error associated therewith. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for error detection/correction based memory management, comprising:
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determining an uncorrectable error has occurred in association with a read operation performed with respect to a particular group of memory cells of a memory device; determining a status of an indicator corresponding to the particular group of memory cells, wherein the status of the indicator indicates whether the particular group of memory cells has a previous uncorrectable error associated therewith; and determining whether to retire the particular group of memory cells in response to the determined status of the indicator. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A memory system, comprising:
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a memory device; and a controller coupled to the memory device and configured to, for each of a number of particular groups of memory cells of the memory device; update a status of an indicator corresponding to the particular group of memory cells in response to a read operation performed with respect to the particular group of memory cells resulting in an uncorrectable error; and determine, in response to the status of the indicator, whether to retire the particular group of memory cells in response to a subsequent read operation performed with respect to the particular group of memory cells resulting in an uncorrectable error. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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29. A memory system, comprising:
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a memory device having groups of memory cells; and a controller coupled to the memory device and configured to; determine whether an uncorrectable error has occurred in association with a read operation performed with respect to a particular group of memory cells; determine a status of an indicator corresponding to the particular block, wherein the status of the indicator indicates whether the particular group of memory cells has a previous uncorrectable error associated therewith; and determine whether to retire the particular group of memory cells in response to the determined status of the indicator. - View Dependent Claims (30, 31, 32, 33, 34)
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Specification