| 摘要 |
PROBLEM TO BE SOLVED: To reduce the resistance of a solid-state electrolytic capacitor and to prevent a decline in electrostatic capacitance in a high-frequency region by reducing the potential occurring in a cathode during a manufacturing process. SOLUTION: The solid-state electrolytic capacitor comprises a cathode-side electrode foil (4) which has been etched, a chemical conversion film (6) formed on the etched surface of the cathode-side electrode foil, a conductor film (coating layer 8) which is formed on the front surface of the chemical conversion film with part of it extended through the chemical conversion film to establish the conductivity path to the cathode-side electrode foil, and an anode-side electrode foil (14) which is formed with a solid-state electrolyte layer (10) interposed between the conductor layer and the anode-side electrode foil (14). The resistance value of the conductor layer including a contact resistance with respect to the solid-state electrolyte layer (10) is set to 0.01Ωor less. The manufacture of the solid-state electrolytic capacitor includes a process of forming the conductor layer of titanium carbide, and then applying a potential of≤2 V to the conductor layer. COPYRIGHT: (C)2006,JPO&NCIPI
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