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DS: Dünne Schichten

DS 23: Postersitzung I

DS 23.18: Poster

Freitag, 4. März 2005, 16:00–18:30, Poster TU B

Tailoring of the polymer surfaces with low energy ions: relevance to growth and adhesion of noble metals — •Sebastian Wille, Jurgita Zekonyte, Ulrich Schürmann, Vladimir Zaporojtchenko, and Franz Faupel — Lehrstuhl für Materialverbunde, Technische Fakultät der CAU, Kaiserstr.2, 24143 Kiel

Ion-polymer interaction induces different phenomena in the near surface layer of polymers and promotes its adhesion to metals [1]. Using XPS and TEM, polymer surfaces were examined after 1 keV ion-beam treatments with oxygen, nitrogen and argon ions in the ion fluence range from 10¹² to 10¹⁶ cm⁻² to clarify the following points: chemical reaction after treatment in vacuum and after exposition to air, identification of adsorption-relevant species for metal atoms, formation of cross-links in the outermost polymer layer. The early stages of metal-polymer interface formation during metallization play a crucial role in the metal-polymer adhesion. Therefore, the influence of the ion fluence and ion chemistry on the condensation of noble metals, film growth and peel strength were measured. The surface treatment with very ion low fluence improved the adhesion between copper and differect polymers by two orders of magnitude. The locus of failure changed at the same time from interfacial failure for untreated polymer surfaces to cohesive failure in the polymer for modified surfaces. [1] V. Zaporojtchenko et.al. NIM B, 2004 in press.