Back pattern counter measure for solid state drives

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11978490
APP PUB NO 20230410866A1
SERIAL NO

17752112

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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This disclosure includes back pattern counter measures for solid state drives. Embodiments described herein include setting and applying read threshold offsets according to flags set based on an amount of data stored within a memory block (e.g., an “openness” of the block). The flag is implemented during read commands to account for shifts in voltage distribution of open blocks. A value of the flag may be chosen based on a number of word lines included in the block that store data. The read threshold offsets may further be based on at least one of the set flag or an age of a respective NAND cell.

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Patent Owner(s)

  • WESTERN DIGITAL TECHNOLOGIES, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gu, Lanlan San Jose, US 7 94
Jin, Ming Fremont, US 127 1616
Sun, Yongke Pleasanton, US 21 257

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