Abstract
Dielectric breakdown is a sudden and catastrophic increase in the conductivity of an insulator caused by electrical stress. It is one of the major reliability issues in electronic devices using insulating films as gate insulators and in energy and memory capacitors. Despite extensive studies, our understanding of the physical mechanisms driving the breakdown process remains incomplete, and atomistic models describing the dielectric breakdown are controversial. This Review surveys the enormous amount of data and knowledge accumulated from experimental and theoretical studies of dielectric breakdown in different insulating materials, focusing on describing phenomenological models and novel computational approaches.
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Acknowledgements
A.P. acknowledges the FAR 2022–2023 project of the ‘Enzo Ferrari’ Engineering Department of the University of Modena and Reggio Emilia, Italy, for the financial support. J.S. and A.L.S. are grateful to Engineering and Physical Sciences Research Council (EPSRC, grant numbers EP/P013503/1 and EP/R034540/1) for the financial support. Through their membership of the UK’s HEC Materials Chemistry Consortium, which is funded by EPSRC (grant numbers EP/R029431 and EP/X035859/1), this work used the ARCHER2 UK National Supercomputing Service (http://www.archer2.ac.uk). The authors are grateful to E. Wu, G. Bersuker, V. Afanas’ev, T. Grasser, S. Mahapatra, T. Kenyon and A. Mehonic for the valuable discussions.
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Padovani, A., La Torraca, P., Strand, J. et al. Dielectric breakdown of oxide films in electronic devices. Nat Rev Mater 9, 607–627 (2024). https://doi.org/10.1038/s41578-024-00702-0
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DOI: https://doi.org/10.1038/s41578-024-00702-0