ELECTRODE FOR ELECTROLYTIC CAPACITOR, AND MANUFACTURING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide an electrode for an electrolytic capacitor having intrinsic capacitance and a method for forming such an electrode using a vacuum deposition process. SOLUTION: The method for forming an anodized electrode includes the sequential steps of (1) providing a substrate 12; (2) coating on the surface of the substrate by vacuum deposition of a porous film 14 comprising at least one substance selected from valve metals, valve metal oxides and mixtures thereof; (3) increasing the effective surface area of the porous film; and (4) producing electrolytically at least one anodized valve oxide layer 18 overlaying the surface of the porous film. COPYRIGHT: (C)2004,JPO&NCIPI