Systematic investigation of the reactive ion beam sputter deposition process of SiO2

Maria Mateev, Thomas Lautenschläger, Daniel Spemann, Annemarie Finzel, Jürgen W. Gerlach, Frank Frost and Carsten Bundesmann ()
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Maria Mateev: Leibniz-Institut für Oberflächenmodifizierung e.V.
Thomas Lautenschläger: Leibniz-Institut für Oberflächenmodifizierung e.V.
Daniel Spemann: Leibniz-Institut für Oberflächenmodifizierung e.V.
Annemarie Finzel: Leibniz-Institut für Oberflächenmodifizierung e.V.
Jürgen W. Gerlach: Leibniz-Institut für Oberflächenmodifizierung e.V.
Frank Frost: Leibniz-Institut für Oberflächenmodifizierung e.V.
Carsten Bundesmann: Leibniz-Institut für Oberflächenmodifizierung e.V.

The European Physical Journal B: Condensed Matter and Complex Systems, 2018, vol. 91, issue 2, 1-8

Abstract: Abstract Ion beam sputter deposition (IBSD) is an established physical vapour deposition technique that offers the opportunity to tailor the properties of film-forming particles and, consequently, film properties. This is because of two reasons: (i) ion generation and acceleration (ion source), sputtering (target) and film deposition (substrate) are locally separated. (ii) The angular and energy distribution of sputtered target atoms and scattered primary particles depend on ion incidence angle, ion energy, and ion species. Ion beam sputtering of a Si target in a reactive oxygen atmosphere was used to grow SiO2 films on silicon substrates. The sputtering geometry, ion energy and ion species were varied systematically and their influence on film properties was investigated. The SiO2 films are amorphous. The growth rate increases with increasing ion energy and ion incidence angle. Thickness, index of refraction, stoichiometry, mass density and surface roughness show a strong correlation with the sputtering geometry. A considerable amount of primary inert gas particles is found in the deposited films. The primary ion species also has an impact on the film properties, whereas the influence of the ion energy is rather small.

Keywords: Solid; State; and; Materials (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1140/epjb/e2018-80453-x

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