Obsolete block management for data retention in nonvolatile memory

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8732391
APP PUB NO 20130282958A1
SERIAL NO

13453898

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Abstract

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In a nonvolatile memory array, blocks that contain only obsolete data are modified by adding charge to their cells, increasing the charge level from the programmed charge levels that represented obsolete data to elevated charge levels. The increase in overall charge in such blocks lessens the tendency of such blocks to impact data retention in neighboring blocks.

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Patent Owner(s)

  • SANDISK TECHNOLOGIES LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Avila, Chris Nga Yee Sunnyvale, US 30 773
Hutchison, Neil David Campbell, US 10 402
Shepard, Zac San Jose, US 3 92
Sprouse, Steven T San Jose, US 49 1701

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