Showa Denko K.k.

Showa Denko Kabushiki Kaisha

Wataru Minamida

Atsushi Sakai

Hiroshi Nitoh

Yuji Furuta

Takashi Ichimura

A solid electrolytic capacitor is obtained by mounting a plurality of single plate capacitor elements within a chip by employing a stacking structure such as parallel stacking, opposing stacking, each layer-opposing stacking or closest stacking. As a result, a compact and high-capacitance element can be easily manufactured. The single plate capacitor element is preferably an element having an unfolded fan-like shape.

Solid electrolytic multilayer capacitor

The present invention provides a solid electrolytic multilayer capacitor excellent in yield and capability, and provides a monolayer capacitor element for use in the manufacture of the solid electrolytic multilayer capacitor. In the multilayer solid electrolyte capacitor of the present invention, a solid electrolytic multilayer capacitor,in which a plurality of monolayer capacitor elements,are stacked such that the anode areas,aligned in the same direction are stacked and bonded onto a lead frame,on the anode side and the cathode areas are stacked and bonded onto a lead frame,on the cathode side so as to have an unfolded fan shape widening toward the distal end of the cathode area from the anode area,side, to provide a multilayer capacitor element,and the periphery of the multilayer capacitor element,that are covered and sealed with an armoring resin,. The monolayer capacitor element,preferably has a constitution such that the end part of the anode substrate,having thereon a dielectric oxide layer,worked out to an anode area,, the cathode area,is formed by providing a solid electrolyte layer,on the dielectric oxide layer,in the area exclusive of the anode area,and an electrically conducting layers,and,on the solid electrolyte layer,, and the thickness S,at the distal end of the cathode area is larger than the thickness S,at the base part of the cathode area.

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Nagano, Japan

Wataru Minamida