Volume 17, Issue 1 1900138
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SiCN:H thin films deposited by MW-PECVD with liquid organosilicon precursor: Gas ratio influence versus properties of the deposits

Béatrice Plujat

Corresponding Author

Béatrice Plujat

Université de Perpignan Via Domitia, Perpignan, France

Correspondence Béatrice Plujat, Université de Perpignan Via Domitia, 52 Avenue Paul Alduy, 66100 Perpignan, France.

Email: [email protected]

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Hervé Glénat

Hervé Glénat

Laboratoire PROMES CNRS, Perpignan, France

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Angélique Bousquet

Angélique Bousquet

Université Clermont Auvergne, Aubière, France

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Lawrence Frézet

Lawrence Frézet

Université Clermont Auvergne, Aubière, France

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Jonathan Hamon

Jonathan Hamon

Institut des Matériaux Jean Rouxel, Nantes, France

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Antoine Goullet

Antoine Goullet

Institut des Matériaux Jean Rouxel, Nantes, France

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Éric Tomasella

Éric Tomasella

Université Clermont Auvergne, Aubière, France

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Emmanuel Hernandez

Emmanuel Hernandez

Université de Perpignan Via Domitia, Perpignan, France

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Sébastien Quoizola

Sébastien Quoizola

Université de Perpignan Via Domitia, Perpignan, France

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Laurent Thomas

Laurent Thomas

Université de Perpignan Via Domitia, Perpignan, France

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First published: 04 November 2019
Citations: 10

Abstract

Silicon carbonitride SiCN:H thin films are deposited with microwave plasma-enhanced chemical vapor deposition. Argon, ammonia, and tetramethylsilane (TMS) (Ar/NH3/Si(CH3)4) are used for the gas mixture. Plasma gas phase chemistry is studied using optical emission spectroscopy according to the TMS/NH3 gas flow ratio, highlighting the presence of three discharge regimes. Then, the deposited SiCN:H thin films are analyzed by X-ray photoelectron spectroscopy and energy dispersive X-ray spectroscopy, enabling us to correlate plasma and film chemistry. Thus, we define three thin film families corresponding to the three discharge regimes occurring in the plasma phase. Properties of these families are studied: Optical properties by spectroscopic ellipsometry, electrical properties by I–V measurements and electron spin resonance, and mechanical properties by nanoindentation and tribology.

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