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In this work, we fabricated the Pt/NbOx/Pt MIT device showing threshold switching. XPS results revealed that there are mixed NbO2 and Nb2O5 phases in the NbOx thin film. The self-oscillation of NbOx device with a resistor has been demonstrated, showing its feasibility as an oscillation neuron.
Analog conductance of resistive memories is attractive for implementing the weights in neuro-inspired algorithms. One of the most popular deep learning algorithms is the convolutional neural network (CNN). In this paper, we review our recent progress on using resistive memories for neuro-inspired computing. First, we optimized the iterative programming protocol to tune the weights of HfOx based resistive...
Fig. 1 shows typical bipolar resistive switching characteristics of the Pt/HfOx/TiN device with 10 voltage sweeps from 0 to 2V for set and 0 to −2.5V for reset, respectively. A 100 µA current compliance was applied to protect the device during the set process. We will utilize the gradual reset process for analog weight tuning. Fig. 2 shows our optimization flow of the programing protocol. It is expected...
The paper presents experimental demonstration of 6-bit digital-to-analog (DAC) and 4-bit analog-to-digital conversion (ADC) operations implemented with a hybrid circuit consisting of Pt/TiO2−x/Pt resistive switching devices (also known as ReRAMs or memristors) and a Si operational amplifier (op-amp). In particular, a binary-weighted implementation is demonstrated for DAC, while ADC is implemented...
We demonstrate that hybrid circuit consisting of Ag/a-Si/Pt memristive devices and silicon operational amplifier can perform analog dot-product computation. The high conductive states in the considered memristive device are linear, making it useful for general analog-input analog-weight operations. In particular, in proposed hybrid circuits, input analog voltage is multiplied by analog weight (conductance)...
We demonstrate that hybrid circuit consisting of Ag/a-Si/Pt memristive devices and silicon operational amplifier can perform analog dot-product computation. The high conductive states in the considered memristive device are linear, making it useful for general analog-input analog-weight operations. In particular, in proposed hybrid circuits, input analog voltage is multiplied by analog weight (conductance)...
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