Memory hole bit line structures

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United States of America Patent

PATENT NO 9922709
SERIAL NO

14715566

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Abstract

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Methods for reducing leakage currents through unselected memory cells of a memory array during a memory operation are described. In some cases, the leakage currents through the unselected memory cells of the memory array may be reduced by setting an adjustable resistance bit line structure connected to the unselected memory cells into a non-conducting state. The adjustable resistance bit line structure may comprise a bit line structure in which the resistance of an intrinsic (or near intrinsic) polysilicon portion of the bit line structure may be adjusted via an application of a voltage to a select gate portion of the bit line structure that is not directly connected to the intrinsic polysilicon portion. The intrinsic polysilicon portion may be set into a conducting state or a non-conducting state based on the voltage applied to the select gate portion.

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Patent Owner(s)

  • SANDISK TECHNOLOGIES LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Petti, Christopher Mountain View, US 37 2008
Ratnam, Perumal Fremont, US 27 269
Yan, Tianhong Saratoga, US 74 1153

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