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Non-filamentary RRAM is a promising technology that features self-rectifying, forming/compliance-free, tight resistance distributions at both high and low resistance states (HRS/LRS). Direct experimental evidence for its physical switching & failure mechanisms, however, is still missing, due to the lack of suitable characterization techniques. In this work, a novel method combining the random-telegraph-noise...
This paper investigates the effect of nano-scale Al2O3 on the tracking failure resistance of silicone rubber nanocomposites. The samples were prepared by filling nano-scale Al2O3 in silicone rubber with the weight ratios of 0.25, 0.5, 1, 1.5, 3 wt%. AC voltage (0 kV-50 kV) was applied on a pair of needle-plate electrodes on the nanocomposites surface with insulation distance of 10 mm. The weight loss,...
Based on the retention failure mechanism of high resistance state due to reconstruction of oxygen vacancy filament in the rupture region, a physical model is proposed to quantify the retention failure behavior of oxide-based RRAM devices, supported by experiments. A new data retention evaluation methodology is proposed to predict the failure probability and lifetime of the memory devices.
This paper investigates the effect of nano-scale SiO2 on the tracking failure properties of nanocomposites. Test samples were made by dispersing nano-scale SiO2 powder in epoxy with the weight ratios of 0, 1, 3, 5, 7, 9 wt%. AC voltage was applied on a pair of needle-plate electrodes at the surface with the insulation distance of 10 mm. The time to tracking failure and discharge current were recorded...
In this paper, two NOR flash memory test vehicle samples, which failed in endurance cycling stress test, were investigated. The failure location is first determined by electrical test bitmapping. Subsequent failure analysis showed a SiOx particle at the failure location, which is provided by bitmap. The oxide particle is chemically different from surrounding inter-metal dielectric oxide, containing...
In this paper, we present an integrated model of hardware and software failures of a fault-tolerant 2-node server system used in a real-life application of an archive system. Each node runs a distinct component of the server application software and identical copies of a fault monitoring service. The fault monitoring service on each node monitors the status of its local application software as well...
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