On the influence of substrate temperature for cubic boron nitride growth

BN-films were deposited on Si(100) substrates with r.f. magnetron sputtering of hBN targets. The chemical and the phase composition were determined with Auger electron spectroscopy sputter depth profiling and with Fourier transform infrared spectroscopy; the film stress was measured with the beam-be...

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Veröffentlicht in:Thin solid films 2003-08, Vol.437 (1), p.83-88
Hauptverfasser: Le, Y.K, Oechsner, H
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description BN-films were deposited on Si(100) substrates with r.f. magnetron sputtering of hBN targets. The chemical and the phase composition were determined with Auger electron spectroscopy sputter depth profiling and with Fourier transform infrared spectroscopy; the film stress was measured with the beam-bending method. Temperature dependent deposition studies for a constant substrate bias of −200 V revealed that cBN was formed at substrate temperatures close to room temperature for appropriate values of the N 2-content in the N 2/Ar working gas. The stress is slightly reduced with increasing substrate temperature, and thicker hBN-sublayers seem to improve the film adherence to the substrate. The commonly observed temperature threshold for cBN growth is very probably required to establish full BN stoichiometry as a condition for cBN formation.
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subjects Auger electron spectroscopy
Boron nitride
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Deformation and plasticity (including yield, ductility, and superplasticity)
Deposition by sputtering
Exact sciences and technology
Film composition
Materials science
Mechanical and acoustical properties of condensed matter
Mechanical properties of solids
Methods of deposition of films and coatings
film growth and epitaxy
Physics
Plasma processing and deposition
title On the influence of substrate temperature for cubic boron nitride growth
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