Browsing by Author "Kittur, Harish M."

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A Novel Read Scheme for Large Size One-Resistor Resistive Random Access Memory Array
(2017-02-10)
Zackriya, Mohammed, V
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Kittur, Harish M.
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Chin, Albert
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電子工程學系及電子研究所
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Department of Electronics Engineering and Institute of Electronics
The major issue of RRAM is the uneven sneak path that limits the array size. For the first time record large One-Resistor (1R) RRAM array of 128x128 is realized, and the array cells at the worst case still have good Low-/High-Resistive State (LRS/HRS) current difference of 378 nA/16 nA, even without using the selector device. This array has extremely low read current of 9.7 mu A due to both low-current RRAM device and circuit interaction, where a novel and simple scheme of a reference point by half selected cell and a differential amplifier (DA) were implemented in the circuit design.
Impact of Current Distribution on RRAM Array with High and Low I-ON/I-OFF Devices
(2017-01-01)
Zackriya, Mohammed, V
;
Chin, Albert
;
Kittur, Harish M.
;
電子工程學系及電子研究所
;
Department of Electronics Engineering and Institute of Electronics
Using novel circuit design topology to include the sneak path current as a reference input, the performance of two RRAM devices with I-ON/I-OFF of 26 and 925 were compared for crosspoint array. The RRAM with better current distribution outperforms the RRAM with 36X higher I-ON/I-OFF, on crosspoint array. Thus, the RRAM devices should aim on tightening the current distribution, where high I-ON/I-OFF also consumes high power on circuit.