Patent ID: 6134097
Filing Date: 2000-10-17
Classification: H01G

Abstract:
A variable capacitor comprising:a stator formed of a dielectric having a stator electrode, and having a stator terminal electrically connected to the stator electrode and a dielectric layer of the stator formed so as to cover the stator electrode;a rotor having a rotor electrode formed on a surface thereof which faces the stator electrode, wherein the dielectric layer is disposed between the rotor electrode and the stator electrode and an outer surface of the dielectric layer of the stator is in contact with the rotor electrode of the rotor; anda conductive cover which holds the rotor such that the rotor can be rotated relative to the stator for changing an effective overlapping area between the rotor electrode and the stator electrode, the conductive cover being attached to stator such that its edge portion faces the stator, and being electrically connected to the rotor electrode,wherein the stator terminal does not extend onto the outer surface of the dielectric layer of the stator which faces the edge portion of said cover.