Centre National De La Recherche Scientifique

Commissariat a L'energie Atomique Et Aux Energies Alternatives

Universitë De Bordeaux

Institut Polytechnique De Bordeaux

Mona Treguer-Delapierre

Jean-Charles Souriau

Etienne Duguet

Maxime Bronchy

Céline Feautrier

Julie Gougeon

A method for interconnecting components of an electronic system includes depositing a sintering solution onto a first component to form an interconnection layer, the sintering solution comprising a solvent, metal nanoparticles dispersed in the solvent, and a stabilizing agent adsorbed onto the nanoparticles. More than 95.0%, preferably more than 99.0% of the mass of the nanoparticles include a metal selected from silver, gold, copper and alloys thereof and have a polyhedral shape with an aspect ratio greater than 0.8. The method also includes eliminating, at least partially, the solvent from the layer to form an ordered agglomerate in which the nanoparticles are regularly disposed in three axes, the stabilizing agent binding them together and maintaining at least a portion of the nanoparticles at a distance from each other, debinding and sintering the layer, and depositing a second component in contact with the layer before or during debinding or sintering.

Method for interconnecting components of an electronic system by sintering

Growing community of inventors

Villenave d'Ornon, France

Mona Treguer-Delapierre