Testbences for the Heracles compact model based on open-source software.
There currently are testbenches for the ngspice and vacask simulators.
The documentation is still work in progress.
This work was supported by the European Research Council (ERC) through the European’s Union Horizon Europe Research and Innovation Programme under Grant Agreement No 101042585. Views and opinions expressed are however those of the authors only and do not necessarily reflect those of the European Union or the European Research Council. Neither the European Union nor the granting authority can be held responsible for them.
This project includes the Heracles (Copyright (c) 2024-2025 University of Groningen) binaries which are licensed under the MIT license.
If you find Heracles useful in your work, consider citing on of the following articles:
Heracles: A HfO2 Ferroelectric Capacitor Compact Model for Efficient Circuit Simulations
@article{fehlings2025heracles,
author={Fehlings, Luca and Hanif Ali, Md and Gibertini, Paolo and Gallicchio, Egidio A. and Ganguly, Udayan and Deshpande, Veeresh and Covi, Erika},
journal={IEEE Transactions on Electron Devices},
title={Heracles: A HfO2 Ferroelectric Capacitor Compact Model for Efficient Circuit Simulations},
year={2025},
volume={72},
number={11},
pages={6009-6014},
keywords={Integrated circuit modeling;Switches;Capacitance;Electrodes;Computational modeling;Semiconductor device modeling;Hafnium compounds;Charge carrier density;Load modeling;Leakage currents;Compact model;ferroelectric devices;HfO2;nonvolatile memory;semiconductor device modeling;SPICE},
doi={10.1109/TED.2025.3615577}}
@article{fehlings2025defect,
title={Defect-Aware Physics-Based Compact Model for Ferroelectric nvCap: From TCAD Calibration to Circuit Co-Design},
author={Fehlings, Luca and Raut, Nihal and Ali, Md Hanif and Puglisi, Francesco M and Padovani, Andrea and Deshpande, Veeresh and Covi, Erika},
journal={arXiv preprint arXiv:2511.21267},
year={2025}
}