Abstract: A solid electrolytic capacitor (A1) includes a porous sintered body (10) of metal particles or conductive ceramic particles, anode wires (11A, 11B) partially inserted in the porous sintered body (10), an anode terminal provided by portions of the anode wires (11A, 11B) which project from the porous sintered body (10), and a cathode (30) formed on an obverse surface of the porous sintered body (10). The anode terminal includes a first and a second anode terminals (11a, 11b), and circuit current flows from the first anode terminal (11a) toward the second anode terminal (11b) through the porous sintered body (10). Therefore, noise cancellation property can be enhanced with respect to a wide frequency band, and large electric power can be supplied with high responsiveness. In a circuit using the solid electrolytic capacitor (A1), the space efficiency on a board can be enhanced, and the cost can be reduced.

Abstract: A solid electrolytic capacitor 1 includes a capacitor element 2 and a resin package 9 enclosing the capacitor element. The capacitor element includes a sintered body 3 of valve metal powder, an anode 4a provided by embedding an anode wire 4 in the sintered body, and a cathode 5 provided by forming a metal layer on the sintered body. A first lead member 6 in the form of a plate is connected to the anode wire 4. The end of the first lead member projects from a side surface 9a of the resin package 9 to provide an anode terminal T1. A second lead member 7 in the form of a plate is connected to the cathode 5. The end of the second lead member projects from a side surface 9b of the resin package 9 to provide a cathode terminal T2.

Abstract: A solid electrolytic capacitor (A) includes a first porous sintered body (1A) made of valve metal, anode conduction members (21A, 21B) electrically connected to the first porous sintered body (1A), surface-mounting anode terminals (3A, 3B) electrically connected to the anode conduction members (21A, 21B), surface-mounting cathode terminals, and a second porous sintered body (1B) made of valve metal and intervening between the first porous sintered body (1A) and the anode conduction members (21A, 21B).

Abstract: A solid electrolytic capacitor (A1) includes a first and a second anode terminals (11a, 11b) projecting in different directions from each other. Preferably, a metal cover (22) for electrically connecting the anode terminals (11a, 11b) to each other is provided. With such an arrangement, the ESR and the ESL can be reduced, and the high frequency characteristics can be enhanced.

Abstract: An electric double layer capacitor includes an anode, a cathode, and an electrolytic solution provided between the anode and the cathode. The anode may be a niobium porous sintered body with an oxide film formed as a dielectric layer on a surface thereof. The cathode allows an electric double layer at an interface with the electrolytic solution. The electric double layer capacitor has a large capacitance and increased voltage.

Abstract: A solid electrolytic capacitor (A1) includes a first and a second porous sintered bodies (1). Each sintered body (1) is flat, with its thickness being small relative to the width or the length. The first and the second sintered bodies (1) are spaced from each other in the widthwise or lengthwise direction.

Abstract: The powder of an Nb compound has a composition represented by NbxOy, NbxNz or NbxOyNz. The powder of the Nb compound has an electric conductivity which is not less than 1/10 of that of Nb. A porous sintered body used for manufacturing a solid electrolytic capacitor is formed using the powder of the Nb compound. The solid electrolytic capacitor achieves both of a reduction in size and an increase in capacitance.

Abstract: A solid electrolytic capacitor (A1) includes a porous sintered body (1) of valve metal, and a metal case (2) accommodating the porous sintered body. The metal case (2) and the porous sintered body (1) are electrically connected to each other to serve as an anode. The porous sintered body (1) is formed with a dielectric layer and a solid electrolyte layer. The solid electrolyte layer serves as a cathode.

Abstract: A solid electrolytic capacitor (A1) includes a first and a second anode terminals (11a, 11b) projecting in different directions from each other. Preferably, a metal cover (22) for electrically connecting the anode terminals (11a, 11b) to each other is provided. With such an arrangement, the ESR and the ESL can be reduced, and the high frequency characteristics can be enhanced.

Abstract: An electrolytic capacitor (A1) of the present invention includes an anode (2), a cathode (3) and an electrolyte (4) intervening between the anode (2) and the cathode (3). The anode (2) includes a porous sintered body (21) made of valve metal and having a surface on which an oxide film as a dielectric layer (23) is formed, and an anode wire (22) electrically connecting the porous sintered body (21) to a positive external connection terminal (7A). The cathode (3) includes a polarizable electrode (31) for forming an electric double layer at an interface with the electrolyte (4), and a collector electrode (32) electrically connecting the polarizable member (31) to a negative external connection terminal (7B).

Abstract: A solid electrolytic capacitor (A1) includes a porous sintered body (1) of valve metal, internal anode terminals (11a, 11b) projecting from the porous sintered body, and external anode terminals (21a, 21b) positioned lower than the internal anode terminals and having a bottom surface utilized for surface-mounting. The internal anode terminals (11a, 11b) are provided at a position lower than the center of the porous sintered body (1) in the height direction of the porous sintered body.

Abstract: A solid electrolytic capacitor (A1) includes a porous sintered body (10) of metal particles or conductive ceramic particles, anode wires (11A, 11B) partially inserted in the porous sintered body (10), an anode terminal provided by portions of the anode wires (11A, 11B) which project from the porous sintered body (10), and a cathode (30) formed on an obverse surface of the porous sintered body (10). The anode terminal includes a first and a second anode terminals (11a, 11b), and circuit current flows from the first anode terminal (11a) toward the second anode terminal (11b) through the porous sintered body (10). Therefore, noise cancellation property can be enhanced with respect to a wide frequency band, and large electric power can be supplied with high responsiveness. In a circuit using the solid electrolytic capacitor (A1), the space efficiency on a board can be enhanced, and the cost can be reduced.

Abstract: An electrode (A1) for a solid electrolytic capacitor includes a metal plate (1) made of valve metal, and a porous sintered body (2a, 2b) provided on the metal plate (1) and made of valve metal. The porous sintered body includes a first sintered member (2a), and a second sintered member (2b) intervening between the first sintered member (2a) and the metal plate (1). The first sintered member (2a) is greater in density than the second sintered member (2b).

Abstract: A solid electrolytic capacitor (A1) includes a porous sintered body (10) of metal particles or conductive ceramic particles, anode wires (11A, 11B) partially inserted in the porous sintered body (10), an anode terminal provided by portions of the anode wires (11A, 11B) which project from the porous sintered body (10), and a cathode (30) formed on an obverse surface of the porous sintered body (10). The anode terminal includes a first and a second anode terminals (11a, 11b), and circuit current flows from the first anode terminal (11a) toward the second anode terminal (11b) through the porous sintered body (10). Therefore, noise cancellation property can be enhanced with respect to a wide frequency band, and large electric power can be supplied with high responsiveness. In a circuit using the solid electrolytic capacitor (A1), the space efficiency on aboard can be enhanced, and the cost can be reduced.

Abstract: A solid electrolytic capacitor 1 includes a capacitor element 2 and a resin package 9 enclosing the capacitor element. The capacitor element includes a sintered body 3 of valve metal powder, an anode 4a provided by embedding an anode wire 4 in the sintered body, and a cathode 5 provided by forming a metal layer on the sintered body. A first lead member 6 in the form of a plate is connected to the anode wire 4. The end of the first lead member projects from a side surface 9a of the resin package 9 to provide an anode terminal T1. A second lead member 7 in the form of a plate is connected to the cathode 5. The end of the second lead member projects from a side surface 9b of the resin package 9 to provide a cathode terminal T2.

Abstract: A solid electrolytic capacitor (A1) includes a porous sintered body (1), anode conduction members (21A, 21B), surface-mounting anode terminals (3A, 3B), and a surface-mounting cathode terminal. The porous sintered body (1) is made of valve metal. The anode conduction members (21A, 21B) are electrically connected to the porous sintered body (1). The anode terminals (3A, 3B) are electrically connected to the anode conduction members (21A, 21B). At least part of the porous sintered body (1) or at least part of the anode conduction members (21A, 21B) is covered with a ferromagnetic member (8).

Abstract: A solid electrolytic capacitor includes a porous sintered body made of valve metal, and an external anode terminal used for surface-mounting. The anode terminal is offset from the center of the sintered body, as viewed in the thickness direction or first direction of the sintered body. Further, the anode terminal is spaced away from the sintered body in a second direction which is perpendicular to the first direction. Between the sintered body and the anode terminal is formed a conductive path, which is inclined with respect to both the first and the second directions. The path comes closer to the anode terminal in the first direction as it goes farther away from the sintered body in the second direction.

Abstract: A solid electrolytic capacitor (A) includes a first porous sintered body (1A) made of valve metal, anode conduction members (21A, 21B) electrically connected to the first porous sintered body (1A), surface-mounting anode terminals (3A, 3B) electrically connected to the anode conduction members (21A, 21B), surface-mounting cathode terminals, and a second porous sintered body (1B) made of valve metal and intervening between the first porous sintered body (1A) and the anode conduction members (21A, 21B).

Abstract: A solid -electrolytic capacitor manufacturing method according to the present invention includes a dielectric layer formation step for forming a dielectric layer at an inner surface and an outer surface of a porous sintered body (1) to which an anode bar (2A, 2B) including a projecting portion (2a, 2b) is mounted, a solid electrolytic layer formation step for forming a solid electrolytic layer (30) on the dielectric layer, a covering step for covering at least part of the projecting portion of the anode bar (2A, 2B) by a covering member (41a, 41b) before the solid electrolytic layer formation step, and a removal step for removing at least part of the covering member (41a, 41b) after the solid electrolytic layer formation step.

Abstract: A solid electrolytic capacitor includes a porous sintered body made of valve metal, and an external anode terminal used for surface-mounting. The anode terminal is offset from the center of the sintered body, as viewed in the thickness direction or first direction of the sintered body. Further, the anode terminal is spaced away from the sintered body in a second direction which is perpendicular to the first direction. Between the sintered body and the anode terminal is formed a conductive path, which is inclined with respect to both the first and the second directions. The path comes closer to the anode terminal in the first direction as it goes farther away from the sintered body in the second direction.