Abstract: In an electrochemical sensor, a gas analyzing electrochemical cell is implanted directly on a substrate wafer. The entire wafer is coated with enamel layers except at the places needed for the electrical connections. A fixing part fixes the sensor in a housing in such a way that the electrochemical cell is inside the housing which contains the gas to be analyzed. This fixing part provides imperviousness and prevents the gases from reaching the electrical connections.

Abstract: A miniature small pitch connection element comprises an insulating elastomer body associated with conducting strips. The strips are disposed about the body over the largest part of its circumference and the remaining portion of the strips is overmolded by the body to be inside it to provide a strong mechanical connection between said strips and the body. The strips emerging from said body by their respective two ends.

Abstract: A zero insertion force connector for a rectangular chip carrier and a closure clip for such a connector, comprising on the one hand a rectangular base and on the other a clip formed by a rectangular frame coming to bear on the upper part of the carrier, said clip being fixed to said base by hooks disposed at the four corners of the rectangular frame and cooperating with corresponding housings in the base. Said clip further comprises at least two oppositely disposed bearing arms connected together by two cross arms, each bearing arm comprising substantially in the middle thereof a bearing zone to which are connected two symmetrical half arms forming a V in the free condition, the ends of said half arms situated in the vicinity of said hooks being at a level higher than the bearing zone when said clip is in the free condition and substantially at the same level thereas when it is fixed to said base.

Abstract: A gas-analysis probe is provided, the sensor of which is formed by a concentration pile.The electric signal supplied by the sensor is picked up by means of at least two metal rods which are brazed to the sensor by thermocompression on thin filler-metal layers. The connecting lead-outs are isolated in pure-alumina sheaths maintained in place in a ceramic body by a hardened liquid ceramic filling. A spring absorbs the differences in expansion and fins on the metal casing remove the heat. A perforated cap protects the sensor.