Abstract
This chapter provides an overview of established models of some of the typical defects in oxides used in microelectronic devices, highlighting some recent results of theoretical modeling as well as existing problems of computational methods. In numerous electrical measurements, defects in oxide dielectric films have been demonstrated to be electrically active, meaning that they can capture and emit charge carriers from the substrate as well as the gate. These defects, commonly referred to as charge traps, can strongly affect the device characteristics or even impair their functionality causing device failure. Predictive theoretical modeling and simulation of growth and properties of complex and often disordered thin oxide films became a powerful tool of materials discovery where new sophisticated methods of computer experiments play an important part in designing and screening new materials and studying and predicting their properties.
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Acknowledgments
Funding provided by EPSRC under grants No. EP/K01739X/1 and EP/P013503/1 and by the Leverhulme Trust RPG-2016-135 is gratefully acknowledged. Computer facilities on Archer service have been provided via the UK’s HPC Materials Chemistry Consortium (EPSRC Grant No. EP/L000202). I am grateful to J. Gavartin, P. Sushko, A.-M. El-Sayed, D. Z. Gao, M. Kaviani, J. Strand, J. Cottom, and O. Dicks for helpful discussions.
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Shluger, A. (2020). Defects in Oxides in Electronic Devices. In: Andreoni, W., Yip, S. (eds) Handbook of Materials Modeling. Springer, Cham. https://doi.org/10.1007/978-3-319-44680-6_79
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