Radiation-sensitive semiconductor device

In a radiation-sensitive semiconductor device, for example a quadrant diode, having several rectifying junctions, the mutual distance between these junctions can be considerably reduced by keeping the junctions cut off by means of circuit elements in such manner that associated depletion regions touch each other. Charge carriers generated between two junctions are substantially always collected by the appropriate junction. With this arrangement, low crosstalk and good high-frequency properties can be realized. Furthermore, the semiconductor body in which the rectifying junctions are realized may comprise further circuit elements, which permits integration of the radiation-sensitive semiconductor device with other elements.