Abstract

The analog figure-of-merits (FOMs) of conventional inversion-mode (IM) and junctionless (JL) NanoWire Field Effect Transistor (NWFET) have been investigated, considering the gate Work-Function Variability (WFV) and Random Discrete Dopant (RDD) using 3-dimensional (3D) TCAD simulation. While the JL-NWFET shows higher immune to WFV on analog FOMs, it can be easily affected by RDD due to higher channel doping level. On the other hand, the IM-NWFET shows stronger correlation between transconductance (gm) and gate capacitance (Cgg), leading to similar variation in cut-off frequency (ft) even though it shows larger gm and Cgg variation compared to JL-NWFET.

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