Compensation scheme for non-volatile memory

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United States of America Patent

PATENT NO 8988936
APP PUB NO 20150023113A1
SERIAL NO

14506607

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Abstract

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Methods for performing parallel voltage and current compensation during reading and/or writing of memory cells in a memory array are described. In some embodiments, the compensation may include adjusting a bit line voltage and/or bit line reference current applied to a memory cell based on a memory array zone, a bit line layer, and a memory cell direction associated with the memory cell. The compensation may include adjusting the bit line voltage and/or bit line reference current on a per memory cell basis depending on memory cell specific characteristics. In some embodiments, a read/write circuit for reading and/or writing a memory cell may select a bit line voltage from a plurality of bit line voltage options to be applied to the memory cell based on whether the memory cell has been characterized as a strong, weak, or typical memory cell.

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Patent Owner(s)

  • SANDISK TECHNOLOGIES LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Yingchang Cupertino, US 24 234
Gorla, Chandrasekhar Cupertino, US 5 26
Kalra, Pankaj San Jose, US 8 84

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