Neuron Function with Single Device by using "PN-Body Tied SOI-FET" -Mimicking Leaky Integrate and Fire Characteristics-

A neuromorphic chip using a spiking neural network is one candidate for a low-power neural network system. Conventional neuron circuits need a comparator and a capacitor. Reducing the circuit area is one of the challenges. In order to reduce it, we have been researching the neuron function with a single device by using the PN-body tied (PNBT) SOI-FET. In this study, we explored the "leaky" and "integrate" characteristics of the actual single device and found that the PNBT SOI-FET can reproduce neuron-like behavior.