CAPACITIVE JUNCTION MODULATOR, CAPACITIVE JUNCTION AND METHOD FOR MAKING SAME

摘要

The invention concerns a capacitive junction comprising a region (16) adapted to be traversed by an electromagnetic wave, and a dielectric layer (14) interposed between two semiconductor material layers. The dielectric layer (14) has a reduced thickness at said region (16), that is a thickness at said region less than its thickness at a contact of the junction. Such a junction is for instance used to form a modulator. The invention also concerns a method for making such a junction.