1. Fully Convolutional Generative Machine Learning Method for Accelerating Non-Equilibrium Greens Function Simulations
- Author
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Aleksandrov, Preslav, Rezaei, Ali, Xeni, Nikolas, Dutta, Tapas, Asenov, Asen, and Georgiev, Vihar
- Subjects
Computer Science - Computational Engineering, Finance, and Science ,Computer Science - Machine Learning - Abstract
This work describes a novel simulation approach that combines machine learning and device modelling simulations. The device simulations are based on the quantum mechanical non-equilibrium Greens function (NEGF) approach and the machine learning method is an extension to a convolutional generative network. We have named our new simulation approach ML-NEGF and we have implemented it in our in-house simulator called NESS (nano-electronics simulations software). The reported results demonstrate the improved convergence speed of the ML-NEGF method in comparison to the standard NEGF approach. The trained ML model effectively learns the underlying physics of nano-sheet transistor behaviour, resulting in faster convergence of the coupled Poisson-NEGF simulations. Quantitatively, our ML- NEGF approach achieves an average convergence acceleration of 60%, substantially reducing the computational time while maintaining the same accuracy.
- Published
- 2023