Leaky Integrate and Fire Neuron by Charge-Discharge Dynamics in Floating-Body MOSFET.
Leaky Integrate and Fire Neuron by Charge-Discharge Dynamics in Floating-Body MOSFET.
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DOI:
10.1038/s41598-017-07418-y
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发表时间:
2017-08-15
影响因子:
4.6
通讯作者:
Ganguly U
中科院分区:
文献类型:
--
作者:
Dutta S;Kumar V;Shukla A;Mohapatra NR;Ganguly U
Neuro-biology inspired Spiking Neural Network (SNN) enables efficient learning and recognition tasks. To achieve a large scale network akin to biology, a power and area efficient electronic neuron is essential. Earlier, we had demonstrated an LIF neuron by a novel 4-terminal impact ionization based n+/p/n+ with an extended gate (gated-INPN) device by physics simulation. Excellent improvement in area and power compared to conventional analog circuit implementations was observed. In this paper, we propose and experimentally demonstrate a compact conventional 3-terminal partially depleted (PD) SOI- MOSFET (100 nm gate length) to replace the 4-terminal gated-INPN device. Impact ionization (II) induced floating body effect in SOI-MOSFET is used to capture LIF neuron behavior to demonstrate spiking frequency dependence on input. MHz operation enables attractive hardware acceleration compared to biology. Overall, conventional PD-SOI-CMOS technology enables very-large-scale-integration (VLSI) which is essential for biology scale (~1011 neuron based) large neural networks.
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