Simulation and Modeling of Novel Electronic Device Architectures with NESS (Nano-Electronic Simulation Software): A Modular Nano TCAD Simulation Framework
The modeling of nano-electronic devices is a cost-effective approach for optimizing the
semiconductor device performance and for guiding the fabrication technology. In this paper, we
present the capabilities of the new flexible multi-scale nano TCAD simulation software called NanoElectronic Simulation Software (NESS). NESS is designed to study the charge transport in contemporary and novel ultra-scaled semiconductor devices. In order to simulate the charge transport in
such ultra-scaled devices with complex architectures and design, we have developed numerous
simulation modules based on various simulation approaches. Currently, NESS contains a driftdiffusion, Kubo–Greenwood, and non-equilibrium Green’s function (NEGF) modules. All modules
are numerical solvers which are implemented in the C++ programming language, and all of them
are linked and solved self-consistently with the Poisson equation. Here, we have deployed some of
those modules to showcase the capabilities of NESS to simulate advanced nano-scale semiconductor
devices. The devices simulated in this paper are chosen to represent the current state-of-the-art and
future technologies where quantum mechanical effects play an important role. Our examples include
ultra-scaled nanowire transistors, tunnel transistors, resonant tunneling diodes, and negative capacitance transistors. Our results show that NESS is a robust, fast, and reliable simulation platform which
can accurately predict and describe the underlying physics in novel ultra-scaled electronic devices.European Union Horizon 2020 - 688101 SUPERAID7EPSRC UKRI Innovation Fellowship - EP/S001131/1 (QSEE), No.
EP/P009972/1 (QUANTDEVMOD)H2020-FETOPEN-2019 s-
No.862539-Electromed-FET OPEN.No. EP/S000259/1(Variability PDK for design based research on FPGA/neuro computing