SINTERED ELEMENT FOR SOLID ELECTROLYTIC CAPACITOR, ANODIZED ELEMENT FOR SOLID ELECTROLYTIC CAPACITOR, SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR MANUFACTURING THEM

摘要

An anode which constitutes a capacitor is formed of a valve metal. The anode is converted into a conductive oxide by heat treatment after forming and sintering an element or after anodizing the element, and heat resistance of the anode against an excess voltage applied on the capacitor is improved. Thus, a sintered element for solid electrolytic capacitor and an anode element for solid electrolytic capacitor, which can improve withstand voltage of the solid electrolytic capacitor element without increasing element sizes nor deteriorating capacitance of the element, are provided. A solid electrolytic capacitor which uses these elements and has excellent withstand voltage and a method for manufacturing such elements and the capacitor are also provided.