Abstract: A niobium powder is provided for producing a niobium capacitor enhanced in the thermal stability of oxide films on niobium, with less leak current and less deterioration of leak current after application of thermal loads. The niobium powder contains form 0.005 to 0.10 mass % of hydrogen and from 0.002 to 5 mass % of sulfur and, further preferably, one or both of magnesium and aluminum in an amount from 0.002 to 1 mass % in total. The specific surface area of the powder is 1 to 10 m2/g and the average particle diameter of the secondary particles is 10 to 200 &mgr;m.

Abstract: A method of manufacturing a laminated electrolytic capacitor by forming a dielectric made of organic polymer or a composite dielectric made of organic polymer and an oxide of a conductive metal is disclosed. An insulating layer is formed on the conductor, and an electrode is formed on the dielectric layer to complete the capacitive element. Plural capacitor elements are laminated and bonded to outside connection terminals.

Abstract: The present invention relates to the field of solid state capacitors. The invention particularly relates to capacitors of the type in which a powder-formed valve action material, typically tantalum, forms a highly porous anode body portion of a solid state capacitor.

Abstract: An electricity accumulating element comprising a pair of electrodes, and a dielectric thin film and a solid electrolyte thin film sandwiched between the electrodes, wherein the dielectric thin film is a metal oxide thin film such as a chromium oxide thin film. The metal oxide thin film preferably has a thickness of 1 to 100 nm, and is preferably a film obtained by subjecting to heat treatment at a temperature of 400 to 800° C. The solid electrolyte thin film is preferably a thin film obtained by firing a silicon-containing compound at a temperature of 200° C. or more.

Abstract: The invention relates to a niobium powder capable of providing a capacitor having small amounts of leakage current, wherein the average nitrogen concentration in the layer of 50 to 200 nm from the surface to 0.29 to 4% by mass and preferably controlling that in the depth within 50 nm from the surface to 0.19 to 1% by mass, the sintered body, the formed body and the capacitor using the same.

Abstract: A dielectric material having a high dielectric constant includes a Group III metal oxide and a Group V element. The incorporation of the Group V element in the Group III metal oxide material reduces the number of structural defects in the dielectric material, and reduces both the fixed charge density and the conduction current of the dielectric material.

Abstract: An electric energy storage element is provided which contains a secondary battery or a capacitor, and which uses a quinoxaline trimer compound as an electrode active substance and a proton as a charge carrier for the trimer compound. The trimer compound includes a quinoxaline or a quinoxaline derivative.

Abstract: A solid electrolytic capacitor is disclosed which combines low LC with Low ESR and which has good characteristics even in a high frequency range, and a method for preparing the same is also disclosed. In the solid electrolytic capacitor whose electrolytic layer contains electrically conductive particles, non-conductive particles are present in at least a part of an interface between a dielectric layer and the electrolyte layer. By employing the structure, local intensifications of field strength in the dielectric layer are prevented to enable a problem of increase in LC to be overcome while keeping ESR low. By the method which comprised a step of applying a colloidal dispersion containing the non-conductive particles in the form of colloidal particles to the post-electrolytic layer formation step product, the solid electrolytic capacitor having the above-mentioned structure can be prepared efficiently.

Abstract: The present invention relates to a solid electrolytic capacitor comprising an electrode produced by forming a solid electrolytic layer comprised by a polymer having at least one repeating unit selected from a thiophene-diyl skeleton, an isothianaphthene-diyl skeleton, a pyrrole-diyl skeleton, a furan-diyl skeleton and an iminophenylene skeleton and having a fibril structure on a dielectric film layer of a porous valve-acting metal and its production method, and to a highly electroconductive polymer obtained by chemical oxidative polymerization of a monomer and an oxidizing agent at an interface and its production method.

Abstract: A capacitor having a large capacity per unit weight and good LC characteristics is provided, which includes two electrodes and a dielectric interposed between the two electrodes, and the dielectric has a two-layer structure having a first layer predominantly containing niobium oxide NbOX (X=2.5) and a second layer predominantly containing a mixture of niobium oxide NbOX (X=2.5) and niobium oxide NbOX (X=2.0). Preferably, both the first and second layers contain 90 weight % or more of NbOX, and the molar ratio of NbOX (X=2.5) to NbOX (X=2.0) in the second layer is 1:4 to 4:1, and the proportion of the first layer in the two-layer structure is 0.01 to 10% by volume. One of the electrodes preferably contains partially nitrided niobium, and more preferably partially nitrided niobium prepared by partially nitriding a niobium sintered body.

Abstract: An anode (14, 208, 410) and/or cathode (12, 212, 420) of a capacitor has a large surface area. The high surface area of the anode is provided by forming the anode from a thin, electrically conductive layer (16) formed from metal particles (18) or an electrically conductive metallic sponge (416). These materials provide a porous structure with a large surface area of high accessibility. The particles are preferably directional or non-directional sponge particles of a metal, such as titanium. The conductive layer hasa dielectric film (36, 236, 414) on its surface, formed by anodizing the particle surfaces. The dielectric film has a combination of high dielectric constant and high dielectric strength. The cathode (12, 212, 420) of the capacitor is either a conventional solid material or, more preferably, has a large surface provided by forming the surface from a sponge or particles analogously to the anode.

Abstract: A solid electrolytic capacitor includes an anode element made of a valve action metal, a dielectric oxide film formed on a surface of the anode element, a solid electrolytic layer formed on a surface of the dielectric oxide film, and a cathode layer formed on a surface of the solid electrolytic layer. The solid electrolytic layer has an iron concentration not greater than 100 ppm. Alternatively or in combination therewith, a weight fraction of residues in the solid electrolytic layer is smaller than 5 wt %. The polymerization residue is an oxidizing agent and a monomer that is produced when such solid electrolytic layer is formed.

Abstract: A capacitor having a large capacity per unit weight and good LC characteristics is provided, which comprises two electrodes and a dielectric interposed between the two electrodes, and the dielectric has a two-layer structure comprising a first layer predominantly comprised of niobium oxide NbOX (X=2.5) and a second layer predominantly comprised of a mixture of niobium oxide NbOX (X=2.5) and niobium oxide NbOX (X=2.0). Preferably, both the first and second layers contain 90 weight % or more of NbOX, and the molar ratio of NbOX (X=2.5) to NbOX (X=2.0) in the second layer is 1:4 to 4:1, and the proportion of the first layer in the two-layer structure is 0.01 to 10% by volume. One of the electrodes preferably comprises partially nitrided niobium, and more preferably partially nitrided niobium prepared by partialy nitriding a niobium sintered body.

Abstract: A capacitor having a large capacitance appearance ratio and a good moisture resistance value is provided. A sintered body is prepared using a powder for capacitor, comprising as the main component an earth-acid metal, preferably niobium, containing from 3 mass ppb to 1 mass ppm of phosphorus, and a capacitor is constituted from the sintered body as one part electrode, a dielectric material formed on the surface thereof, and another part electrode.

Abstract: A capacitor with a polymeric dielectric layer, the dielectric layer having a leakage current at 85° C. and 85% relative humidity of less than 100 nA/cm2 using a 6 volt bias.

Abstract: A solid electrolytic capacitor having excellent solder wettability and heat resisting adhesion and a method of manufacturing same are obtained by a simple plating configuration. The capacitor includes a capacitor element, positive electrode terminal and negative electrode terminal. The positive electrode terminal and the negative electrode terminal include a metallic member containing (i) at least one selected from the group consisting of nickel, nickel alloy, copper and copper alloy, (ii) a first plated layer of tin or tin alloy, directly disposed without undercoat on the metallic member, and (iii) an intermetallic compound layer formed between the metallic member and the first plated layer. The intermetallic compound layer contains tin-nickel or tin-copper formed through heat reflow treatment of the metallic member disposed on the first plated layer.

Abstract: A method of forming an electronic circuit component using the technique of drop on demand printing to deposit droplets of deposition material, said method comprising depositing a plurality of droplets on a surface to form a patterned electronic device comprising multiple discrete portions.

Abstract: An inorganic-metal composite body exhibiting PTC behavior at a trip point temperature ranging from 40° C.-300° C., including an electrically insulating inorganic matrix having a room temperature resistivity of at least 1×106 &OHgr;·cm, and electrically conductive particles uniformly dispersed in the matrix and forming a three-dimensional conductive network extending from a first surface of said body to an opposed second surface thereof, wherein the composite body has a room temperature resistivity of no more than 10 &OHgr;·cm and a high temperature resistivity of at least 100 &OHgr;·cm. Preferably, the electrically conductive particles are made of a Bi-based alloy containing at least 50 wt % Bi, and have an average diameter, &phgr;ave, of 5-50 &mgr;m and a 3&sgr; particle size distribution of 0.5 &phgr;ave-2.0 &phgr;ave.

Abstract: A capacitor having a large capacity per unit weight and good LC characteristics is provided, which includes two electrodes and a dielectric interposed between the two electrodes, and the dielectric has a two-layer structure including a first layer predominantly niobium oxide NbOx (X=2.5) and a second layer predominantly having a mixture of niobium oxide NbOx (X=2.5) and niobium oxide NbOx (X=2.0). Preferably, both the first and second layers contain 90 weight % or more of NbOx, and the molar ratio of NbOx (X=2.5) to NbOx (X=2.0) In the second layer is 1:4 to 4:1, and the proportion of the first layer in the two-layer structure is 0.01 to 10% by volume. One of the electrodes preferably includes partially nitrided niobium, and more preferably partially nitrided niobium prepared by partially nitriding a niobium sintered body.

Abstract: A dielectric hybrid material and a dielectric hybrid capacitor.

Abstract: A method of making carbon foam is described which involves pyrolizing a mixture containing at least one pyrolizable substance and at least one unpyrolizable material and then removing the unpyrolizable material to obtain the carbon foam. Carbon foam made by this process is also described. Incorporating the carbon foam in a variety of end use applications including electrodes, thermal insulation material, polymers, and the like is also described.

Abstract: The anode for a capacitor has a flat anode conductor with a large-area connection to an anode body. That end of the anode conductor which leads out of the anode body is bent to form a terminal connector. Three different processes for working with a paste, a green film, and a powder are proposed for the production of the anode body.

Abstract: A solid electrolytic capacitor includes an oxide dielectric layer, a first electrically conductive polymer layer of polymer of thiophene or its derivative, a second electrically conductive polymer layer of pyrrole, aniline, or derivative thereof formed by chemical polymerization, a third electrically conductive polymer layer of thiophene or its derivative formed by chemical polymerization, a fourth electrically conductive polymer layer of thiophene, pyrrole, aniline, or derivative thereof formed by electrolytic polymerization, and a fifth electrically conductive polymer layer of thiophene, pyrrole, aniline, or derivative thereof formed by chemical polymerization, which layers are sequentially disposed on a surface of a valve metal, and a carbon layer and a silver layer disposed on the fifth layer.

Abstract: To provide a solid electrolytic capacitor where solid electrolyte is formed at the cut end part and at the masking part to a larger thickness than in other parts, where the adhesion of the solid electrolyte formed on the valve acting metal oxide film is improved, and whereby the capacitor is highly stabilized in various basic properties such as capacitance, dielectric loss (tan &dgr;), leakage current and short circuit defective ratio and also in the reflow soldering heat resistance and moisture resistance load characteristics. These solid electrolytic capacitor can be obtained by forming electrically conducting polymer on a dielectric film by specifying time for dipping of the surface of a valve actiong metal porous body with a solution containing a monomer and with a solution containing an oxidizing agent, time for vaporization of the solvent of the solution containing a monomer, and polymerization conditions after dipping of the solution containing an oxidizing agent.

Abstract: A capacitor includes an anode foil having an anode foil dielectric film deposited thereon by anodic oxidation; an anode lead member including a first metal core with roughness and an anode lead dielectric film deposited on the roughness by anodic oxidation, said anode lead member being electrically connected to the anode foil; a cathode foil opposing to the anode foil interposing a separator between them; a cathode lead member being electrically connected to the cathode foil; and a container filled up with an electrolyte and containing the anode foil, anode lead member, cathode foil and cathode lead member therein. The anodizing voltage employed during anodic oxidation to form the anode lead dielectric film is equal to or higher than about 70% of that used to form the anode foil dielectric film.

Abstract: A conductive high polymer layer as an electrolyte is formed on the entire surface of fine pores of a dielectric oxide layer of an anode electrode having an undulated surface of fine pores or the like. As a result, a solid electrolytic capacitor having characteristics such as capacitance, impedance, and leak current exactly as designed will be obtained. It comprises a manganese dioxide layer composed of a porous sinter of valve metal or roughened meal foil, placed continuously on the entire surface of the undulated surface of a dielectric oxide layer of an anode electrode having an undulated surface, a conductive high polymer layer formed by electrolytic polymerization, in contact with the surface of the manganese dioxide layer, and a cathode electrode placed on this conductive high polymer layer.

Abstract: An electrode for a capacitor having an electrode charge eliminator and an electrode body which is contacted with the electrode charge eliminator and on whose surface a dielectric layer is formed. An intermediate layer blocking the exchange of matter between the dielectric layer and the electrode body is formed between the electrode body and the dielectric layer. The diffusion of oxygen from the dielectric layer into the electrode body is prevented with the aid of the intermediate layer, in particular, so that the electrode exhibits a higher long-time stability.

Abstract: The present invention provides an electrically conductive polymer layer of a solid electrolytic capacitor, the electrically conductive polymer layer coating a dielectric layer coating an anode with an anode lead which projects outwardly from the anode through the dielectric layer, and the electrically conductive polymer layer being separated by the dielectric layer from the anode lead, wherein the electrically conductive polymer layer has a thicker portion than a remaining portion thereof and the thicker portion extends at least in the vicinity of the anode lead, and the thicker portion is bounded with the remaining portion so that a sloped-boundary loop between the thicker portion and the remaining portion extends to be parallel to a flat plane vertical to a direction along which the anode lead projects through the dielectric layer, whereby the thicker portion continuously extends in a closer side to the anode lead than the remaining portion.

Abstract: A solid electrolytic capacitor includes a valve acting metal having microfine pores, a dielectric film formed on a surface of the valve acting metal, and a solid electrolyte layer provided on the dielectric film, in which at least a portion of the solid electrolyte layer is of a lamellar structure. In particular, a solid electrolytic capacitor includes an electrically conducting polymer having a specified condensed ring structure containing (1) a solid electrolyte layer containing a sulfoquinone anion having a sulfo anion group and a quinone structure and other anion, and (2) a solid electrolyte layer containing an anthracenesulfonate ion and other anion.

Abstract: Disclosed are a solid electrolytic capacitor comprising a valve-acting metal, an oxide dielectric layer formed on a surface of the valve-acting metal and a solid electrolyte layer provided on the dielectric film layer, in which the electrically conducting polymer composition layer contains as a dopant at least one anion selected from (1) an alkoxy-substituted naphthalene monosulfonate anion, (2) a heterocyclic sulfonate anion, and (3) an anion of an aliphatic polycyclic compound or a combination thereof with another anion having a dopant ability and a method for producing such a solid electrolytic capacitor. The solid electrolytic capacitor of the invention is excellent in voltage resistance, high frequency property, tan &dgr;, leakage current, heat resistance (reflow property), etc.

Abstract: A method of manufacturing solid electrolytic capacitors by forming an anodized film on a surface of a valve metal anode; forming a capacitor element by adhering an insulating resist tape on said anodized film for separating a negative electrode part and a positive electrode part; forming a MnO2 layer by immersing the capacitor element in a solution containing manganese salts, removing the capacitor element from the solution, and thermally decomposing attached manganese salts; immersing the capacitor element on which the MnO2 layer is formed in an organic polar solvent or aqueous solution thereof; re-anodizing the capacitor element by immersing the capacitor element in an electrolytic solution before the organic polar solvent or its solution dries; and forming a solid electrolyte layer and cathode conductor layer on the base layer.

Abstract: A sintered body (10) made of valve action metal powders such as Ta powders, in which an anode lead (11) is embedded in one of wall faces is formed. A dielectric layer (oxide layer) (14) is formed around the metal powders. A manganese dioxide layer (15) is formed around the sintered body in which the dielectric layer is provided on the metal powders. A graphite layer is formed on the manganese dioxide layer. The graphite layer is made by an aqueous graphite layer (16) on the manganese dioxide layer side and a resin graphite layer (17) formed on the aqueous graphite layer. A metal layer (18) is formed on the graphite layer. In such a manner, a capacitor (1) element is formed. Preferably, the graphite layer is burned at a temperature ranging from 230 to 300° C. As a result, an increase in impedance caused by a thermal stress between cathode layers is prevented. Thus, a solid electrolytic capacitor having a small impedance between the anode and the cathode is obtained.

Abstract: A solid electrolytic capacitor includes a capacitor element having an anode of a valve action metal, an oxide film layer formed on the surface of the anode, a solid electrolytic layer formed on the oxide film layer and a cathode electrically connected to the solid electrolytic layer, and also a packaging resin formed to cover the capacitor element. An intermediate layer to relieve stress is arranged in at least one part of the interface between the cathode and the packaging resin. The intermediate layer is deformed and/or peels to relieve stress caused by heat applied while mounting the capacitor element on a substrate.

Abstract: Tantalum and niobium aluminate mixed metal oxides may be made by a process comprising mixing a first metal compound selected from the group consisting of aluminum alkoxide, aluminum beta-diketonate, aluminum alkoxide beta-diketonate, and mixtures thereof with a second metal compound selected from the group consisting of niobium alkoxide, niobium beta-diketonate, niobium alkoxide beta-diketonate, tantalum alkoxide, tantalum beta-diketonate, tantalum alkoxide beta-diketonate, and mixtures thereof to provide a precursor and then hydrolyzing the mixture. The resulting mixed metal oxide may be used in a variety of components of integrated circuits.

Abstract: A capacitor of the present invention employs one of i) polyimide directly formed by electrodeposition, ii) organic high polymer having a specific structure formed by electrodeposition, and iii) a composite film of the organic high polymer and oxide film of a conductor as dielectrics formed on the surface-roughened conductor. The organic high polymer used in the present invention contains carboxylic radical in its molecular structure. The capacitor of the present invention further comprises an opposite electrode at least containing conductive high polymer on the dielectrics. This conductive high polymer is formed by chemical oxydation-polymerization or both chemical oxydation-polymerization and electro-polymerization. The capacitor element as configured above is strong to mechanical stress, and possible to apply pressure during lamination.

Abstract: A first mold die and a second mold die are moved together and are shaped to define a mold cavity therebetween. A capacitor pellet is positioned within the mold cavity and a plurality of projections extend inwardly to engage the capacitor pellet and hold it spaced away from the cavity side wall. The method comprises placing the pellet body within the cavity molding and retentively engaging the pellet body with a plurality of projections to provide a space between the pellet body and the cavity side wall. A molding material is used to fill the space to provide a coating on the pellet body.

Abstract: A capacitor of the present invention employs one of i) polyimide directly formed by electrodeposition, ii) organic high polymer having a specific structure formed by electrodeposition, and iii) a composite film of the organic high polymer and oxide film of a conductor as dielectrics formed on the surface-roughened conductor. The organic high polymer used in the present invention contains carboxylic radical in its molecular structure. The capacitor of the present invention further comprises an opposite electrode at least containing conductive high polymer on the dielectrics. This conductive high polymer is formed by chemical oxydation-polymerization or both chemical oxydation-polymerization and electro-polymerization. The capacitor element as configured above is strong to mechanical stress, and possible to apply pressure during lamination.

Abstract: 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 25 in which a plurality of monolayer capacitor elements 7 are stacked such that the anode areas 11 aligned in the same direction are stacked and bonded onto a lead frame 9 on the anode side and the cathode areas are stacked and bonded onto a lead frame 8 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 11 side, to provide a multilayer capacitor element 19 and the periphery of the multilayer capacitor element 19 that are covered and sealed with an armoring resin 23.

Abstract: Process for preparing a solid electrolytic Nb capacitor having dielectric loss (tan &dgr;) whose abnormal frequency characteristics are restrained. The process comprises forming a laminating film or laminating films on a first laminate comprising Nb anode body, Nb-oxide layer and solid electrolyte layer formed on said Nb-oxide layer, which further includes removing absorbed water remained between the Nb-oxide layer and the solid electrolyte layer existed in the first laminate or a second laminate including the first laminate and at least one layer of the laminating film.

Abstract: A solid electrolyte capacitor having a solid electrolyte layer that is formed of a polymeric product layer of a polymerizable monomer. The polymeric product layer is doped with an organic sulfonic acid selected from the group consisting of an aromatic polysulfonic acid, an organic sulfonic acid having a hydroxy group, an organic sulfonic acid having a carboxyl group, an alicyclic sulfonic acid, and a benzoquinone sulfonic acid.

Abstract: A solid electrolytic capacitor is here disclosed in which a dielectric layer formed on the surface of an anode obtained by molding and then sintering a niobium metal powder which includes a niobium oxide layer and a niobium nitride region, and a method for manufacturing the solid electrolytic capacitor is also disclosed.

Abstract: A multilayer structure in a solid electrolyte capacitor. The multilayer structure extends over a pore and a peripheral surface in the vicinity of the pore in a porous surface. The multilayer structure includes a dielectric layer having a first part extending on an inner surface of the pore and a second part extending on an outer surface of the peripheral surface; a first coupling layer extending on the first part of the dielectric layer; a first conductive polymer layer extending on the first coupling layer; a second coupling layer extending on at least the second part of the dielectric layer; and a second conductive polymer layer extending on the second coupling layer so that the second conductive polymer layer extends at least over the peripheral surface.

Abstract: A pellet for use in a capacitor includes a rectangular body formed from compressed and sintered particles of conductive material. The body has an exterior surface which is textured to form a plurality of indentations therein. The profile of the textured surface in cross section is selected from the group including essentially of a curved profile, a sine shape profile, a rectangular shaped profile, a U-shaped profile, and a V-shaped profile.

Abstract: Anodic valve metal foils, roughened and provided with dielectric layers, and collector metal foils (metal foils for collector) are laminated alternately to cross with cathodic electroconductive polymer layers therebetween. Anodic terminals and cathodic terminals are connected with the respective ends of the metal foils. For the anodic valve metal foils, an aluminum foil whose internal is an unroughened bulk metal layer is used. The collector metal foil is selected from the group consisting of an Al foil similar to the anodic valve metal foil, an Ni foil, a Cu foil, and an aluminum foil including carbon. As a result, a four-terminal capacitor to provide high capacitance, low impedance, high current-carrying capacity and less heat generation, as well as low ESR and low ESL, is obtained.

Abstract: Doped tantalum and niobium pellets with nitrogen is described wherein the resulting pellets are substantially free of nitride precipitate on their outer surfaces. The tantalum and niobium pellets are formed by heating the pellets to a temperature of from about 600-1400° C. in a nitrogen gas atmosphere and then in a vacuum which causes nitrogen contacting a pellet to diffuse into the inner portion of the pellet instead of forming a precipitate. The resulting pellets have improved DCL stability and reliability in comparison to prior art nitrogen-doped tantalum and niobium pellets.

Abstract: An electrically conductive polymer layer of a solid electrolytic capacitor that coats a dielectric layer that coats an anode. An anode lead projects outwardly from the anode through the dielectric layer, and the electrically conductive polymer layer is separated by the dielectric layer form the anode lead. The electrically conductive polymer layer has a thicker portion than a remaining portion thereof and the thicker portion extends at least in the vicinity of the anode lead, and the thicker portion is bounded with the remaining portion so that a sloped-boundary loop between the thicker portion and the remaining portion extends to be parallel to a flat plane perpendicular to a direction along which the anode lead projects through the dielectric layer, whereby the thicker portion continuously extends close to the anode lead than the remaining portion.

Abstract: An electrode comprising a carbon material with a solid carbon skeleton network and a capacitor containing same, in which there is a first and a second plurality of pores forming transport channels and the first plurality of pores have a pore size of less than 10 nm.

Abstract: This invention provides an apparatus for producing an electrode foil for use in aluminum electrolytic capacitors with which a high capacitance is obtained while the distortion of the foil and the leakage current can be controlled. At least two electrode plates as cathode are disposed in an electrolytic tank containing an electrolytic solution, and a direct current is supplied between an aluminum foil as anode and the electrode plates. Anodization is conducted continuously by turning the direction of the aluminum foil via rollers and conveying the foil between the electrode plates. During this treatment, the length and the position of the effective sections of the electrode plates are adjusted to keep the length to be at most two-thirds of the distance between an area near the surface of the electrolytic solution and the upper part of the bottom roller, so that the peak value of the anodizing current density appears not at the surface of the electrolytic solution but in the electrolytic solution.

Abstract: A fabrication method of a solid electrolytic capacitor is provided, which decreases the necessary repetition number of adhesion steps of an oxidizing agent and a monomer of a conducting polymer to a dielectric of the capacitor while keeping the coverage ratio at a satisfactorily high level. A capacitor body with an oxide layer is first immersed into an oxidizer solution at a room temperature under an atmospheric pressure. The oxidizer solution has a viscosity ranging from 100 to 500 cp at room temperature under the atmospheric pressure. Then, the oxidizer solution adhered to the oxide layer is dried to remove a solvent of the adhered solution and to leave the oxidizing agent on the oxide layer. The oxidizing agent left on the oxide layer is in solid phase at room temperature under the atmospheric pressure. The capacitor body with the oxide layer is immersed into a monomer of a conducting polymer.

Abstract: This invention relates in general to capacitors including one or more layers of dielectric material wherein at least one of the layers including a multiaxially oriented lyotropic liquid crystalline polymer (LCP) film. The present invention also provides lyotropic LCPs films having less than 0.5% residual ionic contaminants and a method of preparing such films and capacitors including such films. In preferred embodiments, the invention further provides a capacitor wherein the liquid crystalline polymer film has less than 0.5% residual ionic contaminants.