| 摘要 |
PURPOSE: To provide a capacitor which excels in productivity, is small in size and has a large capacity and excellent high frequency characteristics without necessitating a complicated manufacturing process. CONSTITUTION: A capacitor is provided with a porous sintered body 2 composed of metal whose major component is titanium, a dielectric film 3, which is formed at least n the part of the surface of the sintered body and contains perovskite composite oxide expressed by a general formula, ATiO3 , where A is Ba or Sr, as the major component, conductor or semiconductor formed on the surface of the dielectric film 3 and a counter electrode which allows continuity with the conductor or semiconductor and faces the sintered body. The conductor or semiconductor has a double layer structure of metal oxide and conductive polymeric compound. The metal oxide is composed of the oxide of at least one metal selected from manganese, nickel and copper, and the conductive polymeric material is composed of polypyrrole or TCNQ complex salt. |
