Socapex

Sescosem- Societe Europeenne Des Semi-conducteurs Et De Microelectronique

Noel Nouailles

Michel Croset

Gonzalo Velasco

Jean-Philippe Schnell

Joel Perret

Electrochemical sensor for the concentrations of species in a fluid mixture comprising a measuring cell of the type having a partial pressure internal reference electrode incorporating a catalysis region in which the gaseous mixture is brought into thermodynamic equilibrium and functioning according to the so-called 'assay' process, so that only a small quantity of the gaseous mixture to be analyzed is admitted into the sensor. It also comprises a supplementary cell functioning as an ionic pump, so as to continuously modify the composition of the gaseous mixture admitted into the sensor under the control of a regulatable electric current.

Electrochemical sensor for the concentration of aspects in a fluid

A method of manufacturing multilayer interconnections for interconnecting veral mutually insulated groups of contact zones formed on an integrated circuit semiconductor chip is provided. The adjacent superimposed interconnection films are separated by an insulating film of a metal oxide produced by the total oxidation of a metal film deposited on the chip prior to the formation of the top layer of interconnections. The metal deposited at the locations of the contact zones is protected against oxidation so that the contact zones are all times accessible at the surface.

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Paris, France

Noel Nouailles