Browsing by Author "Chen, You-Da"

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An Offset Readout Current Sensing Scheme for One-Resistor RRAM-Based Cross-Point Array
(2019-02-01)
Chen, You-Da
;
Chin, Albert
;
電子工程學系及電子研究所
;
Department of Electronics Engineering and Institute of Electronics
The uneven sneak-path currents in resistive random access memory (RRAM) severely constrain the array size. To overcome this issue, we propose an innovative readout scheme that can fully offset the sneak-path currents in one-resistor (1R) RRAM array. Furthermore, the bit cell resistance (R-cell) in an RRAM array can be simply evaluated as the ratio of read voltage (V-read) to the sensed offset current (I-offset). Even under extreme device distribution, a 512x512 array size is still obtained. This is the largest array among simple 1R RRAM, without using a selector device or extra transistor.