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US 2008/0259529 A1Published application
Solid electrolytic capacitor and method of manufacturing solid electrolytic capacitor
AssigneeSanyo Electric Co., Ltd.
InventorsKazuhiro Takatani, Mutsumi Yano, Takashi Umemoto, Hiroshi Nonoue
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Abstract
A solid electrolytic capacitor includes an anode substrate, a dielectric layer provided on the anode substrate, a first cathode layer provided on the dielectric layer, and a second cathode layer provided on the first cathode layer. The first cathode layer is a layer made of polyethylenedioxythiophene and polypyrrole. The second layer is a layer made of polypyrrole.
Claims8
A solid electrolytic capacitor comprising:
- an anode substrate;
- a dielectric layer provided on the anode substrate;
- a first cathode layer provided on the dielectric layer;
- and
- a second cathode layer provided on the first cathode layer, wherein
- the first cathode layer is a layer made of polyethylenedioxythiophene and polypyrrole, and
- the second cathode layer is a layer made of polypyrrole.
4 more elements
A method of manufacturing a solid electrolytic capacitor, comprising the steps of:
- forming a dielectric layer on an anode substrate;
- forming a first cathode layer on the dielectric layer;
- and
- forming a second cathode layer on the first cathode layer, wherein the step of forming the first cathode layer includes the steps of:
- performing a first oxidation process for attaching an oxidizing agent to a surface of the dielectric layer;
- allowing the vapor of ethylenedioxythiophene monomer to react with the oxidizing agent on the surface of the dielectric layer after the first oxidation process;
- and
- performing a first heating process for heating the ethylenedioxythiophene monomer reacted with the oxidizing agent on the surface of the dielectric layer.
5 more elements
Dependencies are inferred from the claim text.