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Developing new joining materials for low-temperature electronics assembly

Roumanille, Pierre and Baco-Carles, Valérie and Bonningue, Corine and Gougeon, Michel and Tailhades, Philippe and Monfraix, Philippe Developing new joining materials for low-temperature electronics assembly. (2016) In: 11th IEEE Nanotechnology Materials and Devices Conference (NMDC), 9 October 2016 - 12 October 2016 (Toulouse, France).

(Document in English)

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Official URL: https://doi.org/10.1109/NMDC.2016.7777169


The present work focuses on a new kind of lead-free joining method for surface-mount technology based on precursor chemistry. The interest of metal oxalates as new soldering materials for die attachment (1st level packaging) was previously demonstrated with silver oxalate. The thermal decomposition of metal oxalates under controlled atmosphere can be used to produce small metal particles below their melting point. These particles are found to be in a highly active particulate form. First experimental studies are focusing on several metal oxalates (tin oxalate and bismuth oxalate) to assess their suitability for low-temperature metal particle production. The main work is dealing with controlled chemical precipitation synthesis and characterization of the compounds as well as study of the properties of decomposition solid products (powder X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy and thermal analyses under different atmospheres).

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to IEEE editor. Electronic ISBN: 978-1-5090-4352-1 The definitive version is available at http://ieeexplore.ieee.org The original PDF of the article can be found at: https://ieeexplore.ieee.org/document/7777169 Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
HAL Id:hal-02434405
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > IRT Saint Exupéry - Institut de Recherche Technologique (FRANCE)
Laboratory name:
Deposited On:10 Jan 2020 08:41

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