CAPACITOR ELEMENT FOR SOLID ELECTROLYTIC CAPACITOR, METHOD FOR MANUFACTURING SUCH CAPACITOR ELEMENT AND SOLID ELECTROLYTIC CAPACITOR USING SUCH CAPACITOR ELEMENT

摘要

A capacitor element comprising an anode chip body produced by sintering a valve-acting metal powder into a porous rectangular parallelepiped, an anode wire fixed to a face of the anode chip body, a dielectric film formed over the surface of the metal powder of the anode chip body, a solid electrolyte layer formed over the dielectric film, and a cathode-side electrode film formed over the solid electrolyte on the surface of the anode chip body. In the step of forming the cathode-side electrode film the fraction defective is reduced. Miniaturization and weight-reduction of a solid electrolytic capacitor using such a capacitor element are attained. At least two parallel edges out of the four edges at which the other face opposite to the above-mentioned face and four side faces of the anode chip body meet each other are chamfered or rounded.