Process and apparatus for producing organic solid electrolyte capacitor

Abstract

The object of the invention is to provide a process for producing an organic solid electrolyte capacitor which is diminished in leakage current, and an apparatus for use in practicing the process. The process includes the steps of completing a capacitor element by forming a dielectric oxide film over an anode body of valve metal and subsequently forming a cathode layer of solid conductive organic material over the oxide film, subjecting the capacitor element to an aging treatment, and forming a shell around the capacitor element. The apparatus, which is an aging apparatus for such capacitor elements, comprises a box for accommodating a plurality of capacitor elements, a conductive buffer layer provided inside the box, a conductive holding member disposed on the box for attaching thereto the outer end of anode lead of each of the capacitor elements, with a silver paste layer of the element in contact with the buffer layer, a current limiter connected to the buffer layer for restricting the current to be passed through the capacitor element to not greater than a predetermined value, and a power source having positive and negative electrodes connected to the holding member and the current limiter, respectively.