VARICAP BASED ON METAL-DIELECTRIC-SEMICONDUCTOR SYSTEM

摘要

FIELD: electrical engineering.SUBSTANCE: invention can be used for development of varicaps based on metal-dielectric-semiconductor (MDSC) system purposed for frequency and phase control of variable signal in wireless devices of HF and SHF ranges. In the varicap based on MDSC system containing semiconductor with n-type conductance, dielectric, gating electrode and sink node of minority carriers with p-n-junction the p-region of sink node of minority carriers with p-n-junction has depth equal to thickness of the semiconductor; it is made in the form of cylindrical layer and part of initial semiconductor with n-type conductance is located inside this layer and connected to the gating electrode.EFFECT: possibility to use a varicap as a capacitive switch.2 dwg