Patent ID: 6336944
Filing Date: 2002-01-08
Classification: C25D,H01G

Abstract:
A method of manufacturing solid electrolytic capacitors, said method comprising:forming an anodized film on a surface of an anode comprising a valve metal; forming a capacitor element by adhering on said anodized film an insulating resist tape for separating cathode and anode; forming a MnO2 layer by immersing said capacitor element in a solution containing dissolved manganese salts, removing said capacitor element from said solution, and thermally decomposing manganese salts on said capacitor element; immersing said capacitor element on which said MnO2 layer is formed in an organic polar solvent or an aqueous solution thereof; re-anodizing said capacitor element by immersing said capacitor element in an electrolytic solution before said organic polar solvents or solution thereof dries; and forming a solid electrolyte layer and cathode conductor layer on said MnO2 layer.