Memory device having an integrated two-terminal current limiting resistor

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United States of America Patent

PATENT NO 8748237
APP PUB NO 20140051223A1
SERIAL NO

14064787

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Abstract

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A resistor structure incorporated into a resistive switching memory cell or device to form memory devices with improved device performance and lifetime is provided. The resistor structure may be a two-terminal structure designed to reduce the maximum current flowing through a memory device. A method is also provided for making such memory device. The method includes depositing a resistor structure and depositing a variable resistance layer of a resistive switching memory cell of the memory device, where the resistor structure is disposed in series with the variable resistance layer to limit the switching current of the memory device. The incorporation of the resistor structure is very useful in obtaining desirable levels of device switching currents that meet the switching specification of various types of memory devices. The memory devices may be formed as part of a high-capacity nonvolatile memory integrated circuit, which can be used in various electronic devices.

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Patent Owner(s)

  • INTERMOLECULAR, INC.;SANDISK 3D LLC;KABUSHIKI KAISHA TOSHIBA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chiang, Tony P Campbell, US 208 9984
Lee, Mankoo Fremont, US 17 256
Pramanik, Dipankar Saratoga, US 156 2149

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