Thermal optimization of silver nanoparticles sintering for low resistive printed applications

Abstract : The authors have investigated if silver nanoparticles can possibly be used for direct writing of conductive patterns. In this paper, a colloidal suspension based on 80 nm silver nanoparticles has been printed with an automated drop-on-demand prototype printer. Prior to any printing of patterns, Differential Scanning Calorimetry (DSC) is investigated as a mean to follow the sintering activation phenomenon according thermal treatment. DSC experiments have thus been performed jointly with SEM observations to optimize the curing behaviour of ink by activating coalescence mechanisms. Printed test vehicles have been tested to validate previous DSC/SEM results. Features as fine as 90 μm wide and 250 nm thick have been successfully printed on silicon nitride substrate. Thermal treatment entailed evident microstructural evolution – with final grain size up to 5 μm – coupled with great reduction of electrical resistivity down to 8 μOhm.cm (i.e. five times the bulk resistivity of silver).
Type de document :
Communication dans un congrès
LAAS-CNRS. MME 09. 20th MicroMechanics Europe Workshop, Sep 2009, Toulouse, France. LAAS-CNRS, pp.D07/ 1-4, 2009
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https://hal-emse.ccsd.cnrs.fr/emse-00466405
Contributeur : Romain Cauchois <>
Soumis le : mardi 23 mars 2010 - 16:39:22
Dernière modification le : mercredi 29 novembre 2017 - 10:07:14

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  • HAL Id : emse-00466405, version 1

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Romain Cauchois, Mohamed Saadaoui, Karim Inal, Béatrice Dubois-Bonvalot, J.-C. Fidalgo. Thermal optimization of silver nanoparticles sintering for low resistive printed applications. LAAS-CNRS. MME 09. 20th MicroMechanics Europe Workshop, Sep 2009, Toulouse, France. LAAS-CNRS, pp.D07/ 1-4, 2009. 〈emse-00466405〉

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