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Ruthenium Sputter Deposition on Organosilicate Glass and on Paralyne: an XPS Study of Interfacial Chemistry, Nucleation and Growth

Published online by Cambridge University Press:  17 March 2011

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Abstract

The interactions of sputter-deposited ruthenium with organosilicate glass (OSG) at 300 K have been studied by x-ray photoelectron spectroscopy (XPS) for Ru coverages from ∼ 0.1 monolayer to several monolayers, using in-situ sample transfer between the deposition and analysis chambers. The results indicate Stranski-Krastanov (SK) type growth, with the completion of the first layer of Ru at an average thickness corresponding to 1 monolayer average coverage. Ru(0) is the only electronic state present. XPS core level spectra indicate weak chemical interactions between Ru and the substrate. A less pronounced tendency towards SK growth was observed for Ru deposition on parylene. Deposition of Ru on OSG followed by electroless deposition of Cu resulted in the formation of a shiny copper film that failed the Scotch Tape test. Results indicate failure mainly at the Ru/OSG interface.

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Articles
Information
MRS Online Proceedings Library (OPL) , Volume 812: Symposium F – Materials, Technology and Reliability for Advanced Interconnects and Low-k Dielectrics-2004 , 2004 , F2.5
Copyright
Copyright © Materials Research Society 2004

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