Axalto S.a.

Sylvie Barbe

Robert A Leydier

Laurent Le Moullec

Beatrice Bonvalot

Béatrice Bonvalot

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 plurality of assemblies is manufactured. Each assembly comprises a sealing slice that is fixed to a base slice. The plurality of assemblies is manufactured in the following manner. In a preparation step, a stack is formed. The stack comprises a plurality of pre-assemblies. Each pre-assembly comprises a base slice, a sealing slice and a fixing layer provided between the base slice and the sealing slice. The stack further comprises at least one supple buffer layer. The supple buffer layer has a mechanical rigidity, which is substantially less than that of the base slices and that of the sealing slices. The supple buffer layer thus enables to compensate for variations in thickness of the base slices and of the sealing slices. In a fixing step, the stack is pressed which causes the sealing slice of each pre-assembly to be fixed to the base-slice of the pre-assembly.

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Puiselet le Marai, France

Sylvie Barbe