Gated Schottky Diode-Type Synaptic Device with a Field-Plate Structure to Reduce the Forward Current
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Updated: Jan 25, 2026

Fabrication of Schottky Diodes on Zn-polar BeMgZnO/ZnO Heterostructure Grown by Plasma-assisted Molecular Beam Epitaxy
Published on: October 23, 2018
Jong-Ho Bae1, Suhwan Lim1, Dongseok Kwon1
1Department of Electrical and Computer Engineering and Inter-University Semiconductor Research Center (ISRC), Seoul National University, Seoul 08826, Korea.
Abstract:
A gated Schottky diode with a field-plate structure is proposed and investigated as a new low-power synaptic device to suppress the forward current of the Schottky diode. In a hardware-based neural network, unwanted forward current can flow through gated Schottky diode-type synaptic devices during integration operations, possibly causing a malfunction of the neural network and increasing the power consumption. By adopting a field-plate structure, a virtual pn junction to suppress the forward current of the Schottky diode is formed in the poly-Si active layer. As a result, the unwanted forward current of the gated Schottky diode is successfully reduced to less than 1 pA/µm.
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