Electrolytic Or Barrier Layer Type Patents (Class 427/80)
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Patent number: 7705382Abstract: A novel lead zirconium titanate (PZT) material having unique properties and application for PZT thin film capacitors and ferroelectric capacitor structures, e.g., FeRAMs, employing such thin film material. The PZT material is scalable, being dimensionally scalable, pulse length scalable and/or E-field scalable in character, and is useful for ferroelectric capacitors over a wide range of thicknesses, e.g., from about 20 nanometers to about 150 nanometers, and a range of lateral dimensions extending to as low as 0.15 ?m. Corresponding capacitor areas (i.e., lateral scaling) in a preferred embodiment are in the range of from about 104 to about 10?2 ?m2. The scalable PZT material of the invention may be formed by liquid delivery MOCVD, without PZT film modification techniques such as acceptor doping or use of film modifiers (e.g., Nb, Ta, La, Sr, Ca and the like).Type: GrantFiled: October 26, 2007Date of Patent: April 27, 2010Assignee: Advanced Technology Materials, Inc.Inventors: Peter C. Van Buskirk, Jeffrey F. Roeder, Steven M. Bilodeau, Michael W. Russell, Stephen T. Johnston, Daniel J. Vestyck, Thomas H. Baum
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Publication number: 20100098841Abstract: A conductive composition comprises a ? conjugated conductive polymer, a dopant, and a nitrogen-containing aromatic cyclic compound. A capacitor comprises an anode composed of a porous material of valve metal, a dielectric layer formed by oxidizing the surface of the anode, and a cathode provided on the dielectric layer and having a solid electrolyte layer containing a ? conjugated conductive polymer, which comprises an electron donor compound containing an electron donor element provided between the dielectric layer and the cathode. Another capacitor is based on the above-described capacitor, wherein the solid electrolyte layer further comprises a dopant and a nitrogen-containing aromatic cyclic compound. An antistatic coating material comprises a ? conjugated conductive polymer, a solubilizing polymer containing an anion group and/or an electron attractive group, a nitrogen-containing aromatic cyclic compound, and a solvent. An antistatic coating is formed by applying the antistatic coating material.Type: ApplicationFiled: December 22, 2009Publication date: April 22, 2010Applicant: Shin-Etsu Polymer Co., Ltd.Inventors: Kazuyoshi Yoshida, Tailu Ning, Yasushi Masahiro, Yutaka Higuchi, Rika Abe
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Publication number: 20100079928Abstract: A solid electrolytic capacitor comprising an anode composed of a valve metal or its alloy, a dielectric layer formed on a surface of the anode, a coupling agent layer formed by subjecting the dielectric layer to a surface treatment with a coupling agent having a phosphonic acid group, a conductive polymer layer formed on the coupling agent layer, and a cathode layer formed on the conductive polymer layer.Type: ApplicationFiled: September 23, 2009Publication date: April 1, 2010Applicant: SANYO ELECTRIC CO., LTD.Inventors: Gaku Harada, Takeshi Sano, Miwa Ogawa
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Publication number: 20100072057Abstract: The invention relates to a process for forming a lead-based ceramic oxide dielectric material comprising at least one pyrochlore crystalline phase, which process comprises the following steps: a) a step of depositing at least one amorphous layer of said lead-based ceramic oxide material on a substrate; and b) a crystallization annealing step carried out on said amorphous layer at a temperature not exceeding 550° C., by means of which a lead-based ceramic oxide dielectric material comprising at least one pyrochlore phase is obtained. Application to the fabrication of capacitors on integrated circuits.Type: ApplicationFiled: September 22, 2009Publication date: March 25, 2010Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUEInventors: Xiaohong Zhu, Emmanuel Defay, Eric Fribourg-Blanc
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Publication number: 20100033906Abstract: The present invention provides a conductive polymer suspension for providing a conductive polymer material having a high conductivity and a method for producing the same, and in particular, a solid electrolytic capacitor having a low ESR and a method for producing the same. The conductive polymer suspension can be is produced by: synthesizing a conductive polymer by chemical oxidative polymerization of a monomer giving the conductive polymer by using an oxidant in an aqueous solvent containing a dopant consisting of a low-molecular organic acid or a salt thereof, or a polyacid having a weight average molecular weight of less than 2,000 or a salt thereof.Type: ApplicationFiled: July 28, 2009Publication date: February 11, 2010Applicant: NEC Tokin CorporationInventors: Tomoki NOBUTA, Ryuta KOBAYAKAWA, Naoki TAKAHASHI, Yasuhisa SUGAWARA, Satoshi SUZUKI, Toshihiko NISHIYAMA
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Publication number: 20100033905Abstract: The present invention provides a conductive polymer suspension for providing a conductive polymer material having a high conductivity and a method for producing the same, and in particular, a solid electrolytic capacitor having a low ESR and a method for producing the same. The conductive polymer suspension is produced by: synthesizing a conductive polymer by chemical oxidative polymerization of a monomer giving the conductive polymer by using an oxidant in a solvent containing a dopant consisting of a low-molecular organic acid or a salt thereof; purifying the conductive polymer; and mixing the purified conductive polymer and an oxidant in an aqueous solvent containing a polyacid component.Type: ApplicationFiled: July 28, 2009Publication date: February 11, 2010Applicant: NEC Tokin CorporationInventors: Ryuta KOBAYAKAWA, Tomoki NOBUTA, Naoki TAKAHASHI, Yasuhisa SUGAWARA, Satoshi SUZUKI, Toshihiko NISHIYAMA
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Publication number: 20100015328Abstract: A method of manufacturing an electrode for an electrochemical device is provided with the steps of: supplying, onto a collector, a powdered mixture containing a binder and an active material; and heating the powdered mixture to form an electrode layer on the collector, that allows continuous mass production of electrodes for electrochemical devices.Type: ApplicationFiled: July 17, 2009Publication date: January 21, 2010Inventors: Yoshitsugu HIROKAWA, Hidekazu Mori, Masahiro Yamakawa
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Publication number: 20100002362Abstract: A double layer capacitor (DLC) containing at least one double layer capacitor cell is provided. Each double layer capacitor cell contains two current collectors, each containing a metallized carrier film with upper and lower planar surfaces, two thin electrode layers in direct contact with the lower and upper planar surfaces of the metallized carrier films of the first and second current collectors, and a polymer electrolyte layer in direct contact with the first and the second thin electrode layers. The polymer electrolyte is applied as a liquid which impregnates and encases the electrode layers and then solidified to form the electrolyte layer. The resulting DLC is preferably no thicker than about 20 microns, and may be as thin as 5 microns. Methods of producing a DLC and for forming a cross-linked electrolyte are also provided.Type: ApplicationFiled: July 27, 2007Publication date: January 7, 2010Applicant: ILLINOIS TOOL WORKS INC.Inventors: Ian W. Clelland, Rick A. Price, Paul R. Jelonek
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Publication number: 20100002358Abstract: The dielectric of a capacitor is formed by superposition of at least two thin layers made from the same metal oxide, respectively in crystalline and amorphous form and respectively presenting quadratic voltage coefficients of capacitance of opposite signs.Type: ApplicationFiled: October 16, 2007Publication date: January 7, 2010Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE, STMICROELECTRONICS (CROLLES 2) S.A.S.Inventors: Emmanuel Defay, Julie Guillan, Serge Blonkowski
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Patent number: 7641933Abstract: A single layer capacitive device including a portion of pre-fired ceramic material and one or more terminations is formed with manufacturing steps that are easily modified to customize size and other aspects of such devices. The single layer devices may be utilized by themselves or selectively combined with MLCs to form integrated capacitor assemblies yielding many desirable performance characteristics in a monolithic assembly. An exemplary integrated capacitor assembly advantageously provides customized frequency response and capacitance in limited real estate. Predictable and generally constant or “flat” impedance versus frequency is afforded mainly by the properties of the single layer device, while higher capacitance is provided mainly from features of one or more associated MLCs. High structural integrity of exemplary integrated capacitor assemblies is achieved due to the disclosed attachment methods.Type: GrantFiled: June 5, 2006Date of Patent: January 5, 2010Assignee: AVX CorporationInventors: Robert Purple, Marilynn Young, Larry Eisenberger
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Patent number: 7632535Abstract: The present invention relates to an electrocatalytic coating and an electrode having the coating thereon, wherein the coating is a mixed metal oxide coating, preferably ruthenium, titanium and tin or antimony oxides. The coating uses water as a solvent that provides for a smoother surface than alcohol based solvents. The electrocatalytic coating can be used especially as an anode component of an electrolysis cell and in particular a cell for the electrolysis of aqueous chlor-alkali solutions.Type: GrantFiled: May 7, 2004Date of Patent: December 15, 2009Assignee: De Nora Tech, Inc.Inventors: Richard C. Carlson, Kenneth L. Hardee, Dino F. DiFranco, Michael S. Moats
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Publication number: 20090286147Abstract: The present invention provides a composite porous membrane suited for a separator for a battery having excellent ion permeability, low pore blocking temperature, and high membrane breakage temperature by compositing resin porous membranes having different melting points (or softening points) without using a termocompression bonding method or a method of directly applying a solution to the substrate by using a composite porous membrane containing a porous membrane A of a resin having a melting point of 150° C. or less and a porous membrane B of a resin having a glass transition temperature of more than 150° C. integrated with the porous membrane A, wherein both a superficial side of the porous membrane B and an interfacial side with the porous membrane A of the porous membrane B have a three-dimensional network structure.Type: ApplicationFiled: May 16, 2008Publication date: November 19, 2009Inventors: Atsushi Nakajima, Cyuji Inukai, Michihiko Irie, Masanori Nakamura, Jun Yamada
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Patent number: 7617577Abstract: A digital variable capacitor package is provided as having a ground plane disposed on predetermined portion of the top surface of a substrate. An elongated signal electrode may also be disposed on the substrate and including a first end defining an input and a second end extending to a substantially central region of the top surface of the substrate. This elongated signal electrode is disposed to be electrically isolated from the ground plane. A number of elongated cantilevers are disposed on the substrate and each include first ends coupled to the second end of the signal electrode and each further include second ends suspended over different predetermined portions of the ground plane. In operation, one or more of the cantilevers may be actuated to move portion thereof into close proximity to the ground plane for providing one or more discrete capacitance values.Type: GrantFiled: August 31, 2005Date of Patent: November 17, 2009Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: John L. Ebel, Rebecca Cortez, Richard E. Strawser, Kevin D. Leedy
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Publication number: 20090279227Abstract: The present invention carries out the vacuum deposition by setting a deposition angle between a single mask set including a shadow mask having a plurality of slits and a deposition source to form a lower terminal layer, a dielectric layer, an inner electrode layer, and an upper terminal layer at once under a vacuum state generated once, or adjusts slit patterns by relatively moving upper and lower mask sets that respectively include shadow masks having a plurality of slits and face each other to form a lower terminal layer, a dielectric layer, an inner electrode layer, and an upper terminal layer at once under a vacuum state generated once.Type: ApplicationFiled: June 21, 2006Publication date: November 12, 2009Inventor: Jae-Ho Ha
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Publication number: 20090219671Abstract: Disclosed herein are a coating solution for the formation of a dielectric thin film and a method for the formation of a dielectric thin film using the coating solution. The coating solution comprises a titanium alkoxide, a ?-diketone or its derivative, and a benzoic acid derivative having an electron donating group. The method comprises spin coating the coating solution on a substrate to form a thin film and drying the thin film at a low temperature to crystallize the thin film. The titanium-containing coating solution is highly stable. In addition, the coating solution enables formation of a thin film, regardless of the kind of substrates, and can be used to form dielectric thin films in an in-line mode in the production processes of PCBs.Type: ApplicationFiled: May 8, 2009Publication date: September 3, 2009Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jun Hee BAE, Seung Hyun Kim, Yul Kyo Chung, Won Hoon Song, Sung Taek Lim, Hyun Ju Jin
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Publication number: 20090202911Abstract: A negative electrode material comprises a conductive powder of particles of a lithium ion-occluding and releasing material coated on their surface with a graphite coating. The graphite coating, on Raman spectroscopy analysis, develops broad peaks having an intensity I1330 and I1580 at 1330 cm?1 and 1580 cm?1 Raman shift, an intensity ratio I1330/I1580 being 1.5<I1330/I1580<3.0. Using the negative electrode material, a lithium ion secondary battery having a high capacity and improved cycle performance can be manufactured.Type: ApplicationFiled: February 6, 2009Publication date: August 13, 2009Inventors: Hirofumi FUKUOKA, Meguru Kashida, Satoru Miyawaki, Toshio Ohba
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Publication number: 20090161297Abstract: Solid electrolytic capacitors are provided with decreased equivalent series resistance (ESR). The solid electrolytic capacitors include: an anode containing a valve metal or an alloy that is mainly made of a valve metal; a dielectric layer formed on a surface of the anode; an electrolyte layer formed on the dielectric layer; a carbon layer formed on the electrolyte layer; and a silver paste layer formed on the carbon layer, wherein the silver paste layer contains a nonionic surfactant.Type: ApplicationFiled: December 18, 2008Publication date: June 25, 2009Applicant: SANYO ELECTRIC CO., LTD.Inventors: Kazuhito KIKUCHI, Mutsumi Yano, Takashi Umemoto, Hiroshi Nonoue
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Patent number: 7547370Abstract: A method for manufacturing a multilayer ceramic electronic element includes the steps of forming ceramic green sheets having superior surface smoothness and small variations in thickness at a high speed, in which defects such as pinholes are prevented from occurring, and providing internal electrodes and step-smoothing ceramic paste on the ceramic green sheets with high accuracy. The method includes the steps of applying ceramic slurry to a base film by a die coater followed by drying performed in a drying furnace for forming the ceramic green sheets, and performing gravure printing of conductive paste and ceramic paste onto the ceramic green sheets by using a first and a second gravure printing apparatus, respectively. Accordingly, the internal electrodes are formed, and the step-smoothing ceramic paste is provided in regions other than those in which the internal electrodes are formed.Type: GrantFiled: December 15, 2006Date of Patent: June 16, 2009Assignee: Murata Manufacturing Co., Ltd.Inventors: Shingo Okuyama, Hiroyoshi Takashima, Akira Hashimoto, Shinichi Kokawa
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Publication number: 20090110811Abstract: A method of making an electrically conductive polymer film having improved thermal stability is described where the method comprises providing a film of an electrically conductive polymer having as a dopant a first protonic acid that is selected to solubilize the doped conductive polymer in a first organic solvent, and contacting the film with a mixture of a second organic solvent and a second protonic acid.Type: ApplicationFiled: October 24, 2007Publication date: April 30, 2009Applicant: Lumimove, Inc. dba CROSSLINKInventors: Yiwei Ding, Scott Hayes, Jill C. Simpson
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Publication number: 20090092747Abstract: A process for producing meso-porous nanocomposite electrode comprising nano-scaled graphene platelets.Type: ApplicationFiled: October 4, 2007Publication date: April 9, 2009Inventors: Aruna Zhamu, Bor Z. Jang
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Patent number: 7510739Abstract: An assembled hematin is formed by depositing hematin on an electrically charged substrate in one or more layers alternating with one or more layers of polyelectrolyte, preferably a cationic polymer. In a method for polymerizing an aromatic monomer, the assembled hematin is contacted with the monomer and a template, preferably an anionic polymer. In a method for polymerizing aniline, the aniline, sulfonated multi walled carbon nano tubes, PEG hematin and a reaction initiator are dispersed in water.Type: GrantFiled: April 21, 2005Date of Patent: March 31, 2009Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Ferdinando Bruno, Lynne A. Samuelson, Ramaswamy Nagarajan, Jayant Kumar, Michael Sennett
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Publication number: 20090073636Abstract: Polymer-ceramic composite materials for use in the formation of capacitors, which materials exhibit very low changes in temperature coefficient of capacitance (TCC) in response to changes in temperature within the range of from about ?55° C. to about 125° C. Specifically, these capacitor materials have a change in TCC ranging from about ?5 % to about +5 %, in response to changes in temperature within the desired temperature range. The inventive composite materials comprise a blend of a polymer component and ferroelectric ceramic particles, wherein the polymer component includes at least one epoxy-containing polymer, and at least one polymer having epoxy-reactive groups. The inventive polymer-ceramic composite materials have excellent mechanical properties such as improved peel strength and lack of brittleness, electrical properties such as high dielectric constant, and improved processing characteristics.Type: ApplicationFiled: September 14, 2007Publication date: March 19, 2009Inventors: PRANABES K. PRAMANIK, Jaclyn Radewitz, Kazuhiro Yamazaki
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Patent number: 7503993Abstract: A method for manufacturing a multilayer ceramic electronic element includes the steps of forming ceramic green sheets having superior surface smoothness and small variations in thickness at a high speed, in which defects such as pinholes are prevented from occurring, and providing internal electrodes and step-smoothing ceramic paste on the ceramic green sheets with high accuracy. The method includes the steps of applying ceramic slurry to a base film by a die coater followed by drying performed in a drying furnace for forming the ceramic green sheets, and performing gravure printing of conductive paste and ceramic paste onto the ceramic green sheets by using a first and a second gravure printing apparatus, respectively. Accordingly, the internal electrodes are formed, and the step-smoothing ceramic paste is provided in regions other than those in which the internal electrodes are formed.Type: GrantFiled: August 25, 2004Date of Patent: March 17, 2009Assignee: Murata Manufacturing Co., Ltd.Inventors: Shingo Okuyama, Hiroyoshi Takashima, Akira Hashimoto, Shinichi Kokawa
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Publication number: 20090059476Abstract: Solid electrolytic capacitors and methods for manufacturing the solid electrolytic capacitor are provided. The solid electrolytic capacitor has excellent reliability by virtue of stress reduction inside an electrolyte layer, which alleviates decrease in capacitance, increase of ESR and leakage current, and suppression of short circuits. The anode of the solid electrolytic capacitor is formed of a valve metal or an alloy thereof as a porous body. Subsequently, a dielectric layer is formed on a surface inside the porous body of the anode, and the electrolyte layer is formed on a surface of the dielectric layer. Here, the electrolyte layer is formed of a conductive polymer and the electrolyte layer inside the porous body of the anode contains an elastomer. Thereafter, a cathode is formed so as to come in contact with the electrolyte layer.Type: ApplicationFiled: August 26, 2008Publication date: March 5, 2009Applicant: SANYO ELECTRIC CO., LTD.Inventors: Masaaki Nemoto, Takashi Umemoto, Hiroshi Nonoue
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Publication number: 20090022883Abstract: A chemical vapor deposition (CVD) process for preparing electrical and optical chalcogenide materials. In a preferred embodiment, the instant CVD-deposited materials exhibit one or more of the following properties: electrical switching, accumulation, setting, reversible multistate behavior, resetting, cognitive functionality, and reversible amorphous-crystalline transformations. In one embodiment, a multilayer structure, including at least one layer containing a chalcogen element, is deposited by CVD and subjected to post-deposition application of energy to produce a chalcogenide material having properties in accordance with the instant invention. In another embodiment,. a single layer chalcogenide material having properties in accordance with the instant invention is formed from a CVD deposition process including three or more deposition precursors, at least one of which is a chalcogen element precursor. Preferred materials are those that include the chalcogen Te along with Ge and/or Sb.Type: ApplicationFiled: September 22, 2008Publication date: January 22, 2009Inventors: Stanford R. Ovshinsky, Smuruthi Kamepalli
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Publication number: 20090022882Abstract: In a print area provided on a peripheral surface of a gravure roll, a plurality of cells are defined by printing-direction walls and perpendicular walls, and each perpendicular wall has a plurality of cuts. In a center portion of the print area, most intersections of the printing-direction walls and the perpendicular walls are defined by T-shaped intersections where the perpendicular walls do not cross the printing-direction walls, but meet the printing-direction walls in a T-shaped arrangement. Preferably, round chamfers are provided at corners where a portion of each printing-direction wall and a portion of each perpendicular wall intersect, and at leading ends of the perpendicular walls pointing toward the cuts.Type: ApplicationFiled: September 17, 2008Publication date: January 22, 2009Applicant: Murata Manufacturing Co., Ltd.Inventors: Hiroyoshi Takashima, Akira Hashimoto, Kazuhiro Tabata, Yoshihiro Kanayama, Takashige Tanabe
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Publication number: 20080297980Abstract: Carbon electrodes for use in, for example, Capacitive Deionization (CDI) of a fluid stream or, for example, an electric double layer capacitor (EDCL). Methods of making the carbon electrodes are also described. The carbon electrode comprises an electrically conductive porous carbon support and a carbon cover layer comprising carbon particles in contact with the electrically conductive porous carbon support. A carbonizable material is within the electrically conductive porous carbon support and provides a bond to the carbon particles at the interface of the electrically conductive porous carbon support and the carbon cover layer. The electrically conductive porous support in some embodiments is a layered structure, where one of the layers is a carbonizable paste layer having electrically conductive particles mixed therein.Type: ApplicationFiled: May 31, 2007Publication date: December 4, 2008Inventors: Roy Joseph Bourcier, Todd P. St Clair, Prantik Mazumder, Andrew R. Nadjadi, JR., Vitor Marino Schneider
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Publication number: 20080259529Abstract: A solid electrolytic capacitor includes an anode substrate, a dielectric layer provided on the anode substrate, a first cathode layer provided on the dielectric layer, and a second cathode layer provided on the first cathode layer. The first cathode layer is a layer made of polyethylenedioxythiophene and polypyrrole. The second layer is a layer made of polypyrrole.Type: ApplicationFiled: December 4, 2007Publication date: October 23, 2008Applicant: SANYO ELECTRIC CO., LTD.Inventors: Kazuhiro Takatani, Mutsumi Yano, Takashi Umemoto, Hiroshi Nonoue
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Publication number: 20080247119Abstract: An electrolytic capacitor includes a cathode body. The cathode body includes a conductive solid layer having particles of conductive solid, formed using a dispersion including particles of conductive solid and a solvent. The particles of the conductive solid in the dispersion have a first particle size distribution peak and a second particle size distribution peak satisfying ?1>?2, where ?1 and ?2 are the average particle size of the first and second particle size distribution peaks, respectively, in particle size distribution measurement. Accordingly, there is provided an electrolytic capacitor reduced in ESR, and further having high withstand voltage and low leakage current.Type: ApplicationFiled: April 3, 2008Publication date: October 9, 2008Applicants: SANYO ELECTRIC CO., LTD., SUN ELECTRONIC INDUSTRIES CORP., SHIN-ETSU POLYMER CO., LTD.Inventors: Kenji KAKUMA, Masakazu HOSOGI
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Publication number: 20080247120Abstract: A carbon layer is formed on a solid electrolyte layer of the solid electrolytic capacitor, and a conductor layer connected to a cathode terminal is further disposed thereon. The carbon layer contains carbon particles, and a first additive or a second additive. The first additive is formed from at least one of those selected from the group consisting of hydrated silica and silicate. The second additive is formed from at least one of those selected from the group consisting of a condensation product of an aromatic sulfonic acid with formaldehyde, a condensation product of an aromatic sulfonate with formaldehyde, polystyrene sulfonic acid, and polystyrene sulfonate.Type: ApplicationFiled: April 8, 2008Publication date: October 9, 2008Inventors: Hiromi Mori, Hiroyuki Matsuura, Kazuyo Saito, Masato Ozawa
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Publication number: 20080248192Abstract: A method of forming a composite comprising the steps of providing a porous carbon structure comprising a surface and pores and infiltrating the structure with a coating comprising MnO2 without completely filling or obstructing a majority of the pores. A method of storing charge comprising the steps of providing a capacitor comprising an anode, a cathode, and an electrolyte, wherein the anode, the cathode, or both comprise a composite comprising a porous carbon structure comprising a surface and pores and a coating on the surface comprising MnO2 wherein the coating does not completely fill or obstruct a majority of the pores and a current collector in electrical contact with the composite, and charging the capacitor.Type: ApplicationFiled: July 13, 2007Publication date: October 9, 2008Inventors: Jeffrey W. Long, Anne E. Fischer, Debra R. Rolison
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Publication number: 20080237791Abstract: A capacitor structure comprises a first and a second electrode of conducting material. Between the first and second electrodes, an atomic layer deposited dielectric film is disposed, which comprises zirconium oxide and a dopant oxide. Herein, the dopant comprises an ionic radius that differs by more than 24 pm from an ionic radius of zirconium, while the dielectric film comprises a dopant content of 10 atomic percent or less of the dielectric film material excluding oxygen. A process for fabricating a capacitor comprises a step of forming a bottom electrode of the capacitor. On the bottom electrode, a dielectric film comprising zirconium oxide is deposited, and a step for introducing a dopant oxide into the dielectric film performed. On the dielectric structure, a top electrode is formed.Type: ApplicationFiled: March 30, 2007Publication date: October 2, 2008Inventors: Tim Boescke, Uwe Schroeder
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Publication number: 20080232036Abstract: The present invention relates to a solid electrolytic capacitor provided with a anode made of a metal or an alloy having valve action, a dielectric layer formed on the anode, and an electrolyte layer consisting of a conductive polymer layer formed so as to have contact with a portion of the region on the dielectric layer surface and a manganese dioxide layer formed so as to have contact with the other portion of the region on the dielectric layer surface.Type: ApplicationFiled: March 10, 2008Publication date: September 25, 2008Applicant: SANYO ELECTRIC CO., LTD.Inventors: Kikuko Kato, Mutsumi Yano, Kazuhiro Takatani, Koichi Nishimura, Takashi Umemoto, Hiroshi Nonoue
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Publication number: 20080218941Abstract: A device and method for the fabrication of a power storage device or ultracapacitor manufactured from a process comprising nickel, chromium or stainless steel sintered on a metal substrate at a temperature of at least 850° C. in an inert atmosphere. The method further comprises stainless steel as the substrate. A catalyst of magnesium, manganese and iron combine with Nitric acid and de-ionized water may also be used.Type: ApplicationFiled: November 8, 2007Publication date: September 11, 2008Inventors: Julius Regalado, Jon K. West, Robert L. Burns, Mark Kohler
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Publication number: 20080171137Abstract: Siloxane polymer compositions and methods of manufacturing a capacitor are described. In some embodiments, a mold layer pattern is formed on a substrate having a conductive structure, and the mold layer pattern has an opening to expose the conductive structure. A conductive layer is formed on the substrate. A buffer layer pattern is formed on the conductive layer formed in the opening. The buffer layer pattern includes a siloxane polymer represented by the following Chemical Formula 1. The conductive layer is selectively removed to form a lower electrode. The mold layer pattern and the buffer layer pattern are removed. A dielectric layer and an upper electrode are formed on the substrate to form a capacitor. The methods may simplify manufacturing processes for a capacitor and a semiconductor device, and may improve their efficiencies.Type: ApplicationFiled: January 9, 2008Publication date: July 17, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Kyoung-Mi Kim, Myung-Sun Kim, Young-Ho Kim
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Publication number: 20080145622Abstract: Some embodiments include thin film capacitors (TFC) formed on a package substrate of an integrated circuit package. The TFC include a polymer-based dielectric layer deposited directly on the package substrate. At least one of the TFC includes a first electrode layer, a second electrode layer, with the polymer-based dielectric layer located between the first and second electrode layers. Each of the first and second electrode layers is also formed individually and directly on the package substrate. Other embodiments are described and claimed.Type: ApplicationFiled: December 14, 2006Publication date: June 19, 2008Inventors: Mihir K. Roy, Islam A. Salama, Yongki Min
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Publication number: 20080138539Abstract: A composite article comprising a substrate and method for making the composite article are provided. A barrier layer is disposed on at least one surface of the substrate, wherein the barrier layer comprises a barrier coating and at least one repair coating disposed on the barrier coating. The repair coating is a conformal coating and comprises a metal or a metal based compound. An electroactive device and in one particular embodiment a light emitting device comprising the composite article are also provided. In another embodiment the invention comprises a barrier layer disposed on at least one surface of a substrate; wherein the barrier layer comprises a barrier coating and at least one repair coating.Type: ApplicationFiled: December 6, 2006Publication date: June 12, 2008Applicant: GENERAL ELECTRIC COMPANYInventors: Eric Michael Breitung, Ahmet Gun Erlat, Larry Neil Lewis
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Publication number: 20080123252Abstract: A solid electrolytic capacitor comprising: a valve metal formed with an anodized film; an inner conductive polymer film formed on the anodized film; and an outer conductive polymer film formed on the inner conductive polymer film. The outer conductive polymer film is obtained by: preparing a first polymer solution (PEDOT/PSSA); dissolving a predetermined dissolved substance in a non-aqueous solvent, the predetermined dissolved substance being selected from the group consisting of boric acid, 1-naphthalenesulfonic acid, 2-naphthalenesulfonic acid, 1,3,6-naphthalenetrisulfonic acid, and polystyrenesulfonic acid, and a salt thereof; mixing the dissolved solvent with pure water to obtain an additive solution; adding the additive solution into the first polymer solution to obtain a second polymer solution; and applying the second polymer solution to the inner conductive polymer film.Type: ApplicationFiled: November 27, 2007Publication date: May 29, 2008Applicant: NEC TOKIN CORPORATIONInventors: Takeo Kasuga, Yuji Yoshida, Masanori Takahashi, Ryuta Kobayakawa, Takeshi Saito, Koji Sakata, Sadamu Toita, Katsuhiro Yoshida
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Patent number: 7358327Abstract: An assembled hematin is formed by depositing hematin on an electrically charged substrate in one or more layers alternating with one or more layers of polyelectrolyte, preferably a cationic polymer. In a method for polymerizing an aromatic monomer, the assembled hematin is contacted with the monomer and a template, preferably an anionic polymer. In a method for polymerizing aniline, the aniline, sulfonated multi walled carbon nano tubes, PEG hematin and a reaction initiator are dispersed in water.Type: GrantFiled: April 21, 2005Date of Patent: April 15, 2008Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Ferdinando Bruno, Lynne A. Samuelson, Ramaswamy Nagarajan, Jayant Kumar, Michael Sennett
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Patent number: 7350281Abstract: An electric device includes an electric element, such as a wound film capacitor, with power input and output leads. The electric element includes a coating layer of parylene that provides moisture resistance and low gas and moisture permeability to protect the electric element from short and long term moisture degradation effects. A known case layer is located adjacent to the coating layer. The case layer is a metal, epoxy-based, silicone-based, or polymer material that encapsulates the coating layer and the electric element to protect the coating layer and electric element from physical damage.Type: GrantFiled: July 26, 2004Date of Patent: April 1, 2008Assignee: Hamilton Sundstrand CorporationInventor: Ted R. Schnetker
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Patent number: 7344751Abstract: An assembled hematin is formed by depositing hematin on an electrically charged substrate in one or more layers alternating with one or more layers of polyelectrolyte, preferably a cationic polymer. In a method for polymerizing an aromatic monomer, the assembled hematin is contacted with the monomer and a template, preferably an anionic polymer. In a method for polymerizing aniline, the aniline, sulfonated multi walled carbon nano tubes, PEG hematin and a reaction initiator are dispersed in water.Type: GrantFiled: April 21, 2005Date of Patent: March 18, 2008Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Ferdinando Bruno, Lynne A. Samuelson, Ramaswamy Nagarajan, Jayant Kumar, Michael Sennett
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Patent number: 7341801Abstract: Electrolyte capacitors containing certain polythiophenes are described. More particularly, the polythiophenes have backbones containing repeating units of the following general formula (I) and/or repeating units of the following general formula (II), wherein A is, for example, a C1-C5-alkylene radical, R is, for example, a C1-C18-alkyl radical, and x is an integer from 0 to 8. Also described are dispersions comprising such polythiophenes, and the use of such polythiophenes or dispersions thereof for producing conductive layers.Type: GrantFiled: July 12, 2004Date of Patent: March 11, 2008Assignee: H.C. Starck GmbHInventors: Knud Reuter, Udo Merker, Friedrich Jonas
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Patent number: 7281305Abstract: A method for attaching a capacitor to the feedthrough assembly of a medical device having a terminal pin comprises threading a first washer over the terminal pin, and placing a body of epoxy in contact with the first washer. The capacitor is positioned over the terminal pin such that the first washer and the body of epoxy are between the lower surface of the capacitor and a support surface. The body of epoxy is cured to couple the capacitor to the insulating structure. During curing, the body of epoxy is substantially confined between the upper surface and the lower surface by the ferrule, the insulating structure, the capacitor, and the first washer.Type: GrantFiled: March 31, 2006Date of Patent: October 16, 2007Assignee: Medtronic, Inc.Inventors: Rajesh V. Iyer, Susan A. Tettemer, John P Tardiff, Shawn D. Knowles
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Patent number: 7276091Abstract: A method of producing a polymer capacitor includes forming a first electrode on a surface of a first ion exchange resin solid and coating a mixture of an ion exchange resin solution and a salt on the other surface of the first resin; putting a second ion exchange resin solid which has a second electrode formed on a surface thereof on the coated layer and conducting lamination of the resulting structure to produce a composite; dissolving the salt to form pores; and filling the pores with an electrolytic solution.Type: GrantFiled: October 13, 2004Date of Patent: October 2, 2007Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Choong Nam Park, Young Kwan Lee, Jae Do Nam, Kwi Jong Lee
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Patent number: 7275298Abstract: There is provided methods for producing an ultrasonic transducer assembly. The methods generally comprise the steps of creating a multi-layered rigid or flexible printed circuit board, having a top surface and bottom surface; creating a patterned conducting layer upon each of the top and bottom surface; creating at least one patterned backplate electrode on the board or as part of a discreet component which is then attached to the board; creating at least one conductive through-hole via integral with the board; roughening at least a portion of each of the at least one backplate to introduce gas pockets in that portion of a surface of the backplate; and attaching thin insulating or dielectric single or multi-layer film on a portion of the board in which the film has an integral conducting surface and in which the conducting surface is configured so as to form a capacitive structure with the at least one backplate.Type: GrantFiled: October 23, 2002Date of Patent: October 2, 2007Inventor: David W. Schindel
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Patent number: 7237316Abstract: According to the present invention, a method for fabricating a three-dimensional acceleration sensor, comprising: providing a semiconductor substrate having first and second surfaces; forming an insulating layer on the first surface of the semiconductor substrate; forming an active layer on the insulating layer; forming a plurality of openings on the active layer at a first region, which is to be located above a movable mass with a predetermined space; selectively removing the insulating layer located under the first region in a wet-etching process through the plurality of openings; and selectively removing the active layer to form a groove separating the first region from a movable mass.Type: GrantFiled: July 18, 2005Date of Patent: July 3, 2007Assignee: Oki Electronics Industry Co., Ltd.Inventor: Akihiro Sakamoto
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Patent number: 7216417Abstract: Method for manufacturing an electromechanical sensor element for converting mechanical forces produced by the movements and vital functions or a person into electric signals, in which method a sensor film (11) is provided with metallic electrodes (15,16) placed on either side of it, at least one of said electrodes being a signal electrode, in which method is produced by cutting off a larger amount of sensor element material, in which method in the manufacture of sensor element material the electrodes are created in a continuous roll-to-roll process, and in which method the sensor element material is produced by laminating as a continuous roll-to-roll process. At least the sensor element material consists of repeated electrode patterns and a sensor element of a desired size and/or shape is formed by cutting the material between the patterns.Type: GrantFiled: October 4, 2002Date of Patent: May 15, 2007Assignee: Emfitech OyInventor: Heikki Raisanen
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Patent number: 7198733Abstract: A formed substrate, wherein the surface of the valve-acting metal having a dielectric film is at least partially covered with an oxide comprising Si, valve-acting metal element and oxygen, preferably, wherein the content of Si in the formed foil having an aluminum oxide dielectric film decreases continuously from the surface of the dielectric film toward the inner part in some regions in the aluminum dielectric film thickness; a method for producing the formed substrate; and a solid electrolytic capacitor comprising a solid electrolyte on the formed substrate. A solid electrolytic capacitor manufactured by using a formed substrate according to the present invention, improved in adhesion to an electrically conducting polymer (solid electrolyte) with its area coverage contacting the polymer being sufficiently large, is increased in the electrostatic capacitance among individual capacitors and improved in the LC yield as compared with capacitors otherwise manufactured.Type: GrantFiled: June 11, 2002Date of Patent: April 3, 2007Assignee: Showa Denko K.K.Inventors: Hiroshi Konuma, Katsuhiko Yamazaki, Takenori Umikawa, Masakazu Yagi, Tamotsu Yamashita
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Patent number: 7179879Abstract: The present invention relates to poly(arylene ethers) used as low k dielectric layers in electronic applications and articles containing such poly(arylene ethers) comprising the structure: wherein n=5 to 10000 and monovalent Ar1 and divalent Ar2 are selected from a group of heteroaromatic compounds that incorporate O, N, Se, S, or Te or combinations of the aforesaid elements, including but not limited to:Type: GrantFiled: January 4, 2005Date of Patent: February 20, 2007Assignee: Chartered Semiconductor Manufacturing Ltd.Inventors: Christopher Lim, Siu Choon Ng, Hardy Chan, Simon Chooi, Mei Sheng Zhou
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Patent number: 7168150Abstract: A method of making a resonant frequency tag which resonates at a predetermined frequency. The method involves providing a first conductive pattern having an inductive element and a first land and a second conductive pattern having a second land and a third land which are joined together by a link. The second conductive pattern is overlaid the first conductive pattern such that the second land is positioned over the first land. The third land is in electrical communication with the inductive element of the first conductive pattern. The formed resonant frequency tag is energized to determine if the tag resonates at the predetermined frequency. If the tag resonates properly, the third land is electrically coupled to the inductive element. If it does not, the second conductive pattern is adjusted so that overlapping portions of the first and second lands are changed, altering the capacitance to adjust the resonant tag frequency.Type: GrantFiled: October 19, 2004Date of Patent: January 30, 2007Assignee: Checkpoint Systems, Inc.Inventors: Eric Eckstein, Gary Mazoki, Peter Lendering, Luis Francisco Soler Bonnin, Takeshi Matsumoto, Lawrence Appalucci