| 摘要 |
Electrical device controlled by at least two tunable capacitance diodes and means impressing a tunable voltage upon said diodes. The device is so characterized that the capacitance diodes which are combined, in a known manner, within a single semiconductor crystal, have as their common component, a surface region produced at one flat side of the semiconductor crystal, whose boundary to the semiconductor crystal is at least essentially parallel to the flat semiconductor surface. The other component of the capacitance diodes, simultaneously produced regions are embedded therein. The embedded regions of opposite conductance type are so arranged over the entire area of the surface region and provided for the individual tuning diodes. Each square amounting to a maximum of 20 percent of the total area of the surface region, contains at least a portion of the active PN-junctions of each of the provided tuning diodes.
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