Dendrite-Inspired Multi-Gate FeFET for Spatiotemporal Sequence Discrimination in 3D Neuromorphic Systems

This project introduces a dendrite-inspired device based on multi-gate ferroelectric field-effect transistors (FeFETs) capable of discriminating spatiotemporal pulse sequences, mimicking the sequence detection behavior in cortical neurons. The FeFETs utilize a ferroelectric layer in their segmented multi-gate design to detect sequential pulses, transitioning their threshold voltage and drain-source conductance based on pulse order. The device leverages 28nm CMOS FeFET technology without modifications, achieving a 100× signal margin in sequence discrimination. By emulating dendritic processes, the device enables energy-efficient and thermally scalable parallel processing in 3D neuromorphic architectures, addressing the limitations of binary logic for 3D integration.