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Effect of ferromagnetic substrates on the film growth in magnetized plasma systems
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences, Solid State Electronics.
2005 In: Surface and Coatings Technology, ISSN 0257-8972, Vol. 200, 1862-1866 p.Article in journal (Refereed) Published
Place, publisher, year, edition, pages
2005. Vol. 200, 1862-1866 p.
URN: urn:nbn:se:uu:diva-94599OAI: oai:DiVA.org:uu-94599DiVA: diva2:168496
Available from: 2006-05-17 Created: 2006-05-17Bibliographically approved
In thesis
1. Hollow Cathode Deposition of Thin Films
Open this publication in new window or tab >>Hollow Cathode Deposition of Thin Films
2006 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Thin films of metals and compounds have a very wide range of applications today. Many of the deposition methods used for the production of such films utilize plasma to support the growth the film, e.g. by the supply of energy and the enhancement of reactivity. This thesis focuses on the physical vapor deposition (PVD) of thin films by high density plasma sources based on hollow cathodes and aims to increase the understanding of the deposition process and its influence on the film properties.

Titanium nitride films reactively deposited by the low-pressure hybrid plasma (HYP LP) source exhibited excellent properties and was deposited at considerable higher rates than films deposited by conventional methods.

An original finding in this work is the influence of substrate material on the deposition process and consequently on the properties of the deposited film. In the deposition of TiN films by the HYP LP source it was found that the substrate temperature was higher for Si substrates than for steel substrates due to a more efficient absorption of microwave power in Si than in steel. Further, it was found that ferromagnetic substrates influence the film growth in magnetized plasma systems. An effect of the ferromagnetic substrates is the enhancement of ion bombardment that increases the growth temperature and affects the texture and morphology of the growing films. It was also found that a DC bias can change the TiN film properties considerably and compensate the effect of ferromagnetic substrates.

High rate depositions of chromium and chromium nitride films by the RF hollow cathode plasma jet (RHCPJ) source were studied. The performance of the reactive diffuse arc process and the CrN film properties indicates that the process can be transferred from small cylindrical cathodes to linear magnetized hollow cathodes which allow deposition on considerable larger areas and this is important for industrial applications.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2006. 55 p.
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1651-6214 ; 194
Electronics, Hollow cathode, Hybrid plasma, PVD, TiN films, Ferromagnetic substrates, Magnetized plasma, CrN films, Elektronik
urn:nbn:se:uu:diva-6925 (URN)91-554-6586-2 (ISBN)
Public defence
2006-06-07, Häggsalen, Ångströmlaboratoriet, Lägerhyddsvägen 1, Uppsala, 13:00
Available from: 2006-05-17 Created: 2006-05-17Bibliographically approved

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