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Molecular Dynamics Simulation of Copper Thin Film Growth on β-Ta (002) Substrate

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Tantalum can be used both as a diffusion barrier and an adhesion layer for copper metallization for semiconductor devices. Experiments show that β-Ta (200) substrates promote (111) texture growth in copper films. In this study, we first create an embedded atom method (EAM) Cu-Ta potential developed by our force matching method (FMM); then the potential is used for Molecular Dynamics (MD) simulations of initial copper thin film growth on β-Ta substrates. Both Cu/Ta interfacial structures and copper film structure are investigated. The relevance to (111) texturing is discussed.

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Li, Y., Adams, J.B. Molecular Dynamics Simulation of Copper Thin Film Growth on β-Ta (002) Substrate. MRS Online Proceedings Library 721, 37 (2002). https://doi.org/10.1557/PROC-721-J3.7

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  • DOI: https://doi.org/10.1557/PROC-721-J3.7

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