Defect management policies for NAND flash memory

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United States of America Patent

PATENT NO 9535777
APP PUB NO 20150149818A1
SERIAL NO

14087282

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Abstract

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Systems and methods of managing defects in nonvolatile storage systems that can be used to avoid an inadvertent loss of data, while maintaining as much useful memory in the nonvolatile storage systems as possible. The disclosed systems and methods can monitor a plurality of trigger events for detecting possible defects in one or more nonvolatile memory (NVM) devices included in the nonvolatile storage systems, and apply one or more defect management policies to the respective NVM devices based on the types of trigger events that resulted in detection of the possible defects. Such defect management policies can be used proactively to retire memory in the nonvolatile storage systems with increased granularity, focusing the retirement of memory on regions of nonvolatile memory that are likely to contain a defect.

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Patent Owner(s)

  • INTEL CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kalavade, Pranav San Jose, US 102 651
Motwani, Ravi H San Diego, US 60 597
Raghunathan, Shyam Sunder Sunnyvale, US 14 87
Zhu, Feng San Jose, US 166 700

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