Solid electrolytic capacitor
First Claim
Patent Images
1. A solid electrolytic capacitor comprising:
- a capacitor element including;
a linear through conductor made of a valve function metal and having a cylindrical shape, the through conductor including a core portion extending in an axial direction of the through conductor and having a pair of end faces facing each other, and a porous portion covering a peripheral surface of the core portion,a dielectric layer disposed along a surface of the porous portion, anda cathode-side functional layer disposed on the dielectric layer,a pair of flat-shaped anode terminals respectively disposed on and covering the pair of end faces of the core portion;
a cathode terminal electrically connected to the cathode-side functional layer; and
an electric insulating member disposed between the cathode-side functional layer and each of the pair of anode terminals, the electric insulating member extending to and terminating at each of the pair of end faces of the core portion, and the electric insulating member being in direct contact with the pair of flat-shaped anode terminals.
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Abstract
A solid electrolytic capacitor that includes a capacitor element having a linear through conductor made of a valve function metal, a dielectric layer disposed on the through conductor, and a cathode-side functional layer disposed on the dielectric layer. The through conductor includes a core portion and a porous portion covering a peripheral surface of the core portion. Both end faces of the core portion of the through conductor are in contact with a pair of anode terminals on the pair of end faces of the body, respectively. A cathode terminal is electrically connected to the cathode-side functional layer.
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Citations
15 Claims
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1. A solid electrolytic capacitor comprising:
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a capacitor element including; a linear through conductor made of a valve function metal and having a cylindrical shape, the through conductor including a core portion extending in an axial direction of the through conductor and having a pair of end faces facing each other, and a porous portion covering a peripheral surface of the core portion, a dielectric layer disposed along a surface of the porous portion, and a cathode-side functional layer disposed on the dielectric layer, a pair of flat-shaped anode terminals respectively disposed on and covering the pair of end faces of the core portion; a cathode terminal electrically connected to the cathode-side functional layer; and an electric insulating member disposed between the cathode-side functional layer and each of the pair of anode terminals, the electric insulating member extending to and terminating at each of the pair of end faces of the core portion, and the electric insulating member being in direct contact with the pair of flat-shaped anode terminals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A solid electrolytic capacitor comprising:
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a body including a pair of end faces facing to each other and a bottom surface adjacent to the end faces; a pair of flat shaped anode terminals disposed on the pair of end faces of the body; and a cathode terminal disposed on the bottom surface of the body, the body including; a sealing member containing resin, and a capacitor element covered by the sealing member, the capacitor element including; a linear through conductor having a cylindrical shape and made of a valve function metal, a dielectric layer disposed on the through conductor, and a cathode-side functional layer disposed on the dielectric layer and electrically connected with the cathode terminal, the through conductor including a core portion extending in an axial direction of the through conductor, and a porous portion covering a peripheral surface of the core portion and including a large number of fine pores, the dielectric layer being formed along an inner peripheral surface of each of the fine pores of the porous portion, and both end faces of the core portion of the through conductor being exposed from the sealing member and in contact with and covered by the pair of anode terminals on the pair of end faces of the body, respectively; and an electric insulating member disposed between the cathode-side functional layer and each of the pair of anode terminals, the electric insulating member extending to and terminating at each of the pair of end faces of the core portion, and the electric insulating member being in direct contact with the pair of flat-shaped anode terminals.
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Specification