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An inhibition part of synapse-neuron connection is indispensable in a neuromorphic system for hardware implementation of artificial intelligence. First, when the system operates with the winner takes all method, a lateral inhibition is required to permit one neuron firing, thereby preventing other neurons from firing. In addition, in order to implement the negative weight, an inhibition part, which...
In this paper, we have simulated how the overshoot current in the Resistive-switching Random Access Memory (RRAM) cell is generated and whether the integrated transistor can effectively suppress the overshoot current that can cause degradation of cell endurance. We propose a CMOS-friendly 1T1R fabrication process and proceed with circuit simulation using the process parameters. The simulation shows...
With the device dimension scaling down, thickness-dependent property optimization for Oxide-Nitride-Oxide (ONO) used in SONOS flash memory is an important issue for the compatibility with scaled CMOS technology. With regard to the thickness-dependent property, trap-based erase behaviors should be investigated thoroughly because electron back-tunneling from gate make erase operation difficult. This...
In order to implement more advanced nonvolatile memory device, many studies have been devoted to improve program/erase speed, endurance, and retention characteristics of nitride-based SONOS flash memory. As the CMOS device size shrinks down, the oxide-nitride-oxide (ONO) multi-layer where charge storage takes place in discrete traps in the silicon nitride layer needs the optimization of thickness...
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