Assembling Two Substrates by Molecular Adhesion, One of the Two Supporting an Electrically Conductive Film

摘要

A process assembling first and second substrates on contact faces by molecular bonding. The first substrate contact face has an electrically conducting layer on at least part of its surface. The process deposits a bond layer on at least part of the electrically conducting layer, which bond layer can molecularly bond with a zone of the second substrate contact face and be combined with the electrically conducting layer to form a conducting alloy, contacts the bond layer with the zone of the second substrate contact face and molecularly bond them, and transforms over all or part of its thickness of all or part of the electrically conducting layer with all or part of the bond layer and with at least part of the thickness of the zone of the contact face on all or part of the surface of the second substrate to form a conducting alloy(s) zone.