Capacitor

A capacitor comprising:

• a conductive semiconductor substrate;
• a first dielectric body on a surface of the conductive semiconductor substrate;
• a second dielectric body on the surface of the conductive semiconductor substrate and separated from the first dielectric body;
• a first electrode on a surface of the first dielectric body and facing the conductive semiconductor substrate across the first dielectric body;
• a second electrode on a surface of the second dielectric body and electrically and physically connected to the conductive semiconductor substrate;
• a first terminal electrode on a surface of the first electrode and electrically connected to the first electrode;
• a second terminal electrode on a surface of the second electrode and electrically connected to the second electrode;
• and
• an insulating film covering the first electrode, the second electrode, the first dielectric body, the second dielectric body, a portion excluding an externally connecting portion of at least one of the first terminal electrode and the second terminal electrode, and a part of the conductive semiconductor substrate, wherein, when a thickness of the first dielectric body is represented by Td and a shortest distance along a surface of the insulating film that connects a first portion of the first terminal electrode that is not covered with the insulating film and a second portion of the substrate that is not covered with the insulating film is represented by Tsr, Tsr<18×Td2.