Solid electrolytic capacitor element, solid electrolytic capacitor, and solid electrolytic capacitor element manufacturing method

Abstract

A solid electrolytic capacitor element that includes: a valve acting metal substrate including a metal substrate layer and a porous layer on the metal substrate layer and having an anode terminal region and a cathode formation region; a dielectric layer on a surface of the porous layer in the cathode formation region; a solid electrolyte layer on the dielectric layer in the cathode formation region; a conductive layer on the solid electrolyte layer; and a mask having: a first portion dividing the valve acting metal substrate into the anode terminal region and the cathode formation region and in direct contact with the porous layer or in indirect contact with the porous layer via the dielectric layer, a second portion covering the solid electrolyte layer on the porous layer, and the mask does not cover the conductive layer.

Dependencies are inferred from the claim text.