Gemalto Sa

Axalto S.a.

Schlumberger Systemes

Beatrice Bonvalot

Robert A Leydier

Sylvie Barbe

Laurent Le Moullec

An electrical device that is electrically and mechanically connectable to another electrical device includes a face equipped with contact pads. An adhesive layer is on the face equipped with the contact pads. The adhesive layer is composed of a substance with adhesive properties. A plurality of openings through the adhesive are layer over each contact pad, and small metal sticks which have been grown electrolessly or electrochemically are in the areas where the openings have been created to form a plurality of conductive paths over each contact pad, the volume of which is defined by the openings.

Electrical assembly

A method of manufacturing an electrical device that is electrically and mechanically connectable to another electrical device is presented. The electrical device includes a face equipped with contact pads. The method includes applying an adhesive layer on the face equipped with contact pads. The adhesive layer is composed of a substance with adhesive properties. The method further includes creating a plurality of openings through the adhesive layer over each contact pad, and growing, electrolessly or electrochemically, small metal sticks in the areas where the openings have been created to form a plurality of conductive paths over each contact pad, the volume of which is defined by the openings.

Process to allow electrical and mechanical connection of an electrical device with a face equipped with contact pads

A sealing-object () is fixed to a base-object (). The sealing-object comprises a through-hole (). The objects are fixed to each other in the following manner. In a preparation step, a fixing layer () is provided between the base-object and the sealing-object. In addition an evacuation device () equipped with an evacuation channel () is placed onto the sealing-object. The through-hole of the sealing object has a first extremity opening out on the evacuation channel and a second extremity opening out on the fixing layer. In a fixing step, the fixing layer is heated which causes the fixing layer to release gas. The gas is at least partially evacuated via the through-hole of the sealing-object and the evacuation channel of the evacuation device.

Method of fixing a sealing object to a base object

A secure integrated circuit device comprising, firstly, an active layer ( ) made up of a semiconductor material and of circuits integrated into the semiconductor material and having contact tabs ( ) on its active face ( ) and, secondly, an additional layer ( ). The active layer ( ) is bonded to the additional layer ( ) by an intermediate layer ( ) applied to the surface of the active face ( ) of the active layer ( ). The face ( ) of the active layer ( ) opposite from its active face ( ) is thinned.

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Bures sur Yvette, France

Beatrice Bonvalot