Method of manufacturing solid electrolytic capacitor including exterior body that covers capacitor element
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsRenki Yamazaki, Takahiro Kumakawa
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Abstract
A capacitor element that has an anode body, a dielectric oxide film layer covering the anode body, and a cathode body formed on the dielectric oxide film layer; an exterior body that covers the capacitor element; a contact layer that is on an anode terminal, which is an end portion of the anode body, and has a surface with a predetermined surface roughness; and an anode-side electrode layer that covers the surface are provided.
Claims13
A method of manufacturing a solid electrolytic capacitor, the method comprising:
- a step of forming a capacitor element having an anode body;
- a step of covering the capacitor element with an exterior body;
- a step of exposing an anode terminal portion from the exterior body, the anode terminal portion being an end portion of the anode body;
- a step of forming a contact layer on the anode terminal portion;
- a step of forming a predetermined roughness on a surface of the contact layer;
- and
- a step of coating the surface of the contact layer with an anode-side electrode layer, wherein:
- the step of forming the contact layer includes a step of accumulating metal particles on the anode terminal portion to form a metal film on the anode terminal portion, and
- each of the metal particles has a spherical shape or a substantially spherical shape.
A method of manufacturing a solid electrolytic capacitor, the method comprising:
- a step of forming a capacitor element having an anode body;
- a step of covering the capacitor element with an exterior body;
- a step of exposing an anode terminal portion from the exterior body, the anode terminal portion being an end portion of the anode body;
- a step of forming a contact layer on the anode terminal portion;
- a step of forming a predetermined roughness on a surface of the contact layer;
- and
- a step of coating the surface of the contact layer with an anode-side electrode layer, wherein:
- the step of forming the contact layer includes a step of accumulating metal particles on the anode terminal portion to form a metal film on the anode terminal portion, and
- the contact layer and the anode terminal portion are metal-bonded to each other.
Dependencies are inferred from the claim text.