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25 April 2024 |
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Article overview
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Future Large-Scale Memristive Device Crossbar Arrays: Limits Imposed by Sneak-Path Currents on Read Operations | | Yansong Gao
; Omid Kavehei
; Damith C. Ranasinghe
; Said F. Al-Sarawi
; Derek Abbott
; | | Date: |
8 Jul 2015 | | Abstract: | Passive crossbar arrays based upon memristive devices, at crosspoints, hold
great promise for the future high-density and non-volatile memories. The most
significant challenge facing memristive device based crossbars today is the
problem of sneak-path currents. In this paper, we investigate a memristive
device with intrinsic rectification behavior to suppress the sneak-path
currents in crossbar arrays. The device model is implemented in Verilog-A
language and is simulated to match device characteristics readily available in
the literature. Then, we systematically evaluate the read operation performance
of large-scale crossbar arrays utilizing our proposed model in terms of read
margin and power consumption while considering different crossbar sizes,
interconnect resistance values, HRS/LRS (High Resistance State/Low Resistance
State) values, rectification ratios and different read-schemes. The outcomes of
this study are understanding the trade-offs among read margin, power
consumption, read-schemes and most importantly providing a guideline for
circuit designers to improve the performance of a memory based crossbar
structure. In addition, read operation performance comparison of the intrinsic
rectifying memristive device model with other memristive device models are
studied. | | Source: | arXiv, 1507.2077 | | Services: | Forum | Review | PDF | Favorites | |
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