Commissariat a L'energie Atomique

Christian Lucas

Francois Marion

Lydie Mathieu

Angelo Guiga

A radiation detector which senses two wave bands and a process for making this detector. A first substrate includes a first photodetection element sensitive to a first wave band. A second substrate contains a second photodetection element which is sensitive to a second wave band. The second substrate is transparent to at least the first wave band. The two photodetection elements are positioned facing each other. The substrates are interconnected by conductive spheres.

Two wave band radiation detector having two facing photodetectors and

Automatic device for measuring the noise level of electronic components. This device comprises selection means (20) to which are connected the components and which are able to select one of these components, measuring means (28) able to determine the noise of the selected component, said measuring means incorporating means (32,34) for biasing the selected component and for processing signals supplied by the thus biased selected component and also incorporating analysis means (36) determining the noise from signals supplied by the processing means, as well as means (10) for controlling the selection means (20) and measuring means (28), said control means (10) being electrically decoupled from the selection means (20) and the biasing and processing means (32,24). Application to the sorting of electronic components following their manufacture.

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Saint Egreve, France

Christian Lucas