Topic
Tantalum capacitor
About: Tantalum capacitor is a research topic. Over the lifetime, 2432 publications have been published within this topic receiving 26709 citations.
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Patent•
08 Sep 2008TL;DR: In this article, an electrolytic capacitor that is configured to be embedded into a circuit board is provided, and the upper surfaces of these exposed anode and cathode termination portions are mounted to the circuit board.
Abstract: An electrolytic capacitor that is configured to be embedded into a circuit board is provided. The electrolytic capacitor contains a capacitor element, anode and cathode terminations, and a case that encapsulates the capacitor element and leaves at least a portion of the anode and cathode terminations exposed that extend outwardly from opposite ends of the case. Each of the terminations possesses an upper surface that faces toward the capacitor element and a lower surface that faces away from the capacitor element. In contrast to conventional surface-mounted electrolytic capacitors, the upper surfaces of these exposed anode and cathode termination portions are mounted to the circuit board. In this manner, the capacitor may essentially be mounted “upside down” so that some or all of its thickness becomes embedded within the board itself, thereby minimizing the height profile of the capacitor on the board.
10 citations
Patent•
29 Oct 1997
TL;DR: In this article, a solid electrolytic capacitor plate is made by forming a conductive polymeric membrane layer as electrolyte on the surface of an aluminum plate which has been subjected to conversion treatment.
Abstract: PROBLEM TO BE SOLVED: To provide a solid electrolytic capacitor, in which anodes of multiple solid electrolytic capacitor plates are directly connected to an anode lead frame without jointing different metallic plates to the anodes SOLUTION: A solid electrolytic capacitor plate is made by forming a conductive polymeric membrane layer as electrolyte on the surface of an aluminum plate which has been subjected to conversion treatment Multiple solid electrolytic capacitor plates are laminated An anode lead frame 1 is connected to their anodes, and a cathode lead frame 2 is connected to their cathodes to form a multilayered solid electrolytic capacitor In this case, a notch is formed on the aluminum plate on the anode of the solid electrolytic capacitor plate Also, the anode lead frame 1 is made of a metallic plate, and steps 1f and 1g are formed by bending a part of its extremity Multiple anode jointing surfaces 1h, 1i, 1j and 1k divided by the steps 1f and 1g are provided The anodes of the solid electrolytic capacitor plates are respectively jointed to the multiple anode jointing surfaces 1h, 1i, 1j and 1k to laminate the multiple solid electrolytic capacitor plates COPYRIGHT: (C)1999,JPO
10 citations
Patent•
02 Oct 1997TL;DR: In this article, a dielectric capacitor and a memory device was designed to provide minimal residue, electric current leakage is minimal, the shape is superior, is suited for enhancing the integration and has favorable insulation property.
Abstract: Aims to provide a dielectric capacitor and a dielectric memory device wherein residue is minimal, electric current leakage is minimal, the shape is superior, is suited for enhancing the integration, and has favorable insulation property and an economical and efficient manufacturing method Dielectric capacitors CAP(1)-CAP(4)) which have bottom electrode 29, dielectric films 20 and 34 formed by contacting this bottom electrode, top electrode 23 formed by contacting this dielectric film, and insulation films 21 and 33 provided by contacting the periphery of bottom electrode 29, and wherein elimination part 17 is formed beforehand in said insulation film, bottom electrode 29 adhered at least within said elimination part is formed into smooth concave surface 29a or convex surface 29b according to etch back or chemical-mechanical polishing process, and dielectric film 20 is formed on this surface, dielectric memory devices M-CEL(1)-M-CEL(4) which have these dielectric capacitors, and a manufacturing method for these capacitors or memory cells
10 citations
TL;DR: Miniature sintered tantalum capacitor electrodes implanted in the cerebral cortex of a rhesus monkey are electrically stable and effective for stimulating small populations of neurons and have distinct safety advantages over conventional noble metal electrodes.
10 citations
Patent•
24 Mar 2006
TL;DR: The chip-like solid electrolytic capacitor as discussed by the authors consists of a capacitor element which is provided with an anode lead and forms an oxidation coating layer, an electrolytic layer, and a cathode drawer layer; an electrode substrate which is used as an electrode of a capacitance, and an insulating layer in which the electrode substrate has a plurality of via-holes or notches.
Abstract: PROBLEM TO BE SOLVED: To inexpensively provide a chip-like solid electrolytic capacitor excellent in an ESR property with a good productivity. SOLUTION: The chip-like solid electrolytic capacitor comprises: a capacitor element which is provided with an anode lead and forms an oxidation coating layer, a solid electrolytic layer, and a cathode drawer layer; an electrode substrate which is used as an electrode of a capacitor; coating resin; an insulating layer in which the electrode substrate has a plurality of via-holes or notches; an anode internal electrode and a cathode internal electrode; and an anode external electrode and a cathode external electrode which are respectively connected to the internal electrodes. The anode internal electrode is formed by conductive deposition, and is projected from the insulating layer to bond the conductive deposition and the anode lead. COPYRIGHT: (C)2008,JPO&INPIT
10 citations