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Sideways deposition rate and ionized flux fraction in dc and high power impulse magnetron sputtering
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- Hajihoseini, Hamidreza (författare)
- Univ Iceland, Sci Inst, IS-107 Reykjavik, Iceland.;Univ Paris Saclay, Univ Paris Sud, CNRS, UMR 8578,LPGP, F-91405 Orsay, France.
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- Cada, Martin (författare)
- Acad Sci Czech Republ, Inst Phys, Vvi, Na Slovance 2, Prague 18221 8, Czech Republic.
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- Hubicka, Zdenek (författare)
- Acad Sci Czech Republ, Inst Phys, Vvi, Na Slovance 2, Prague 18221 8, Czech Republic.
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- Univ Iceland, Sci Inst, IS-107 Reykjavik, Iceland;Univ Paris Saclay, Univ Paris Sud, CNRS, UMR 8578,LPGP, F-91405 Orsay, France. Acad Sci Czech Republ, Inst Phys, Vvi, Na Slovance 2, Prague 18221 8, Czech Republic. (creator_code:org_t)
- American Vacuum Society, 2020
- 2020
- Engelska.
- Ingår i: Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films. - : American Vacuum Society. - 0734-2101 .- 1520-8559. ; 38:3
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- The sideways (radial) deposition rate and ionized flux fraction in a high power impulse magnetron sputtering (HiPIMS) discharge are studied and compared to a dc magnetron sputtering (dcMS) discharge, while the magnetic field strength | B | and degree of balancing are varied. A significant deposition of the film forming material perpendicular to the target surface is observed for both sputter techniques. This sideways deposition decreases with increasing axial distance from the target surface. The sideways deposition rate is always the highest in dc operation, while it is lower for HiPIMS operation. The magnetic field strength has a strong influence on the sideways deposition rate in HiPIMS but not in dcMS. Furthermore, in HiPIMS operation, the radial ion deposition rate is always at least as large as the axial ion deposition rate and often around two times higher. Thus, there are a significantly higher number of ions traveling radially in the HiPIMS discharge. A comparison of the total radial as well as axial fluxes across the entire investigated plasma volume between the target and the substrate position allows for revised estimates of radial over axial flux fractions for different magnetic field configurations. It is here found that the relative radial flux of the film forming material is greater in dcMS compared to HiPIMS for almost all cases investigated. It is therefore concluded that the commonly reported reduction of the (axial) deposition rate in HiPIMS compared to dcMS does not seem to be linked with an increase in sideways material transport in HiPIMS.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
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- Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films (Sök värdpublikationen i LIBRIS)
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