Abstract: System of components for hybridization including a first component (410) with a first set of hybridization studs (414), and at least a second component (412) with second hybridization studs (450), the first and second studs being respectively associated in pairs of studs, one of the first and one of the second studs, with at least one pair of studs, equipped with a projection (418) of meltable material and the other aforesaid first and second studs of the pair of studs, referred to as contact studs (450, 450a, 450b), having a surface wettable by the meltable material. According to the invention at least one part of the contact stud (450) forms a protuberance (452). Application to manufacturing of electronic, electro-optic and mechanical components.

Abstract: A device for the detection of multi-spectral infrared and visible radiation using a bolometric detector having at least one active layer and two control electrodes for the detection of both infrared and visible radiation, and also using at least one photodetector having at least two active layers and two control electrodes for detecting solely visible radiation. The device is uncooled, and the two detectors are superimposed and combined with one-another for forming the same sensitive element.

Abstract: This detector has a resistive element (4) able to undergo heating which is provided with electrical biasing means (6, 8) for amplifying or increasing the heating, a thermometer (12) thermally coupled to the element and converting a temperature variation undergone by the thermometer into an electric signal, and a device (18) for reading the electric signal. The invented detector can be applied to measure and detect infrared radiation. The detector can also be applied to measure and detect radiation of different wavelengths.

Abstract: A bolometric heat detector having an active part composed of at least two coplanar electrodes (8, 10) placed in electrical contact with a first thin semiconducting layer (6), doped by a first doping agent with a first type of conductivity. There is a second thin semiconducting layer (4) doped like the first layer or undoped, and a third thin semiconducting layer (2) doped by a second doping agent with a second type of conductivity opposed to the first. The second layer (4) is placed between the first (6) and the third (2) layers.

Abstract: Measuring system constituted by a radiation detection circuit (3) welded to a reading circuit (2) by metal members (4), which is itself welded to a grooved cover (9) by other metal members (19). The cover (9) is placed on a cryostat cold finger (1) and a cavity (6, 10) contains the two circuits (2, 3). This arrangement obviates the need for bonding and welding electrical connection wires and therefore simplifies assembly, alignment and parallelism of the different parts.