发明申请
US20100328847A1 SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR MANUFACTURING THE SAME 审中-公开
固体电解电容器及其制造方法

SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR MANUFACTURING THE SAME
摘要:
To reduce the increase in leakage current in a molding process. A solid electrolytic capacitor includes: an anode 3 formed from a valve metal or an alloy thereof; an anode lead 2 partly embedded in the anode 3; a dielectric layer 4 provided on the surface of the anode 3; an electrolyte layer 5 provided on the surface of the dielectric layer 4; a cathode layer 6 provided on a part of the electrolyte layer 5 lying on the external surface of the anode 3; and a resin outer package 8 formed to cover a capacitor element formed of the anode 3 in which a part of the anode lead 2 is embedded and on which the dielectric layer 4, the electrolyte layer 5 and the cathode layer 6 are formed, wherein the solid electrolytic capacitor further includes: a first resin layer 10 provided to cover parts of the dielectric layer 4 and the electrolyte layer 5 located at the root 2a of an extension of the anode lead 2 and on a neighboring part of the extension; and a second resin layer 11 provided to cover the first resin layer 10, and the second resin layer 11 is formed from a resin having a smaller flexural modulus than a resin forming the first resin layer 10.
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