Through hole capacitor and method of manufacturing the same

Details Through hole capacitor and method of manufacturing the same Through hole capacitor and method of manufacturing the same

2011-02-22

2011-02-22

Thomas, Eric (Department: 2835)

Electricity: electrical systems and devices

Electrolytic systems or devices

Solid electrolytic capacitor

C361S540000, C361S541000, C029S025030

Reexamination Certificate

active

07894178

ABSTRACT:
A through hole capacitor at least including a substrate, an anode layer, a dielectric layer, a first cathode layer, and a second cathode layer is provided. The substrate has a plurality of through holes. The anode layer is disposed on the inner surface of at least one through hole, and the surface of the anode layer is a porous structure. The dielectric layer is disposed on the porous structure of the anode layer. The first cathode layer covers a surface of the dielectric layer. The second cathode layer covers a surface of the first cathode layer, and the conductivity of the second cathode layer is greater than that of the first cathode layer. The through hole capacitor can be used for impedance control, as the cathode layers of the through hole are used for signal transmission.

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