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Journal Articles Journal of Physics D: Applied Physics Year : 2015

Microstructure and electrical resistance evolution during sintering of a Ag nanoparticle paste

Abstract

Silver nanoparticle pastes are promising materials for high temperature interconnection particularly above 400 °C. Reliability is a major concern in interconnection and it mainly depends on the behavior under the stress induced by thermal cycling. The joint microstructure is then a crucial parameter for reliability and determines the electrical, mechanical and thermal properties. Here, an investigation procedure is proposed to describe the microstructure of a joint and to monitor its evolution in real-time during the sintering. Combining electron and x-ray diffraction with electrical resistance measurement and secondary ion mass spectroscopy, our method is used on a sample made out of a home-made silver nanoparticle paste. The influence of the chemical composition of the paste on the microstructure is discussed as well as the compatibility of the paste for oxide interconnection. © 2015 IOP Publishing Ltd.
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hal-02184156 , version 1 (15-07-2019)

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J. Scola, X. Tassart, C. Vilar, F. Jomard, E. Dumas, et al.. Microstructure and electrical resistance evolution during sintering of a Ag nanoparticle paste. Journal of Physics D: Applied Physics, 2015, 48 (14), pp.145302. ⟨10.1088/0022-3727/48/14/145302⟩. ⟨hal-02184156⟩
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