Dielectric Patents (Class 361/524)
  • Patent number: 10729051
    Abstract: An electronic component assembly is described which comprises a stack of electronic components wherein each electronic component comprises a face and external terminations. A component stability structure is attached to at least one face. A circuit board is provided wherein the circuit board comprises circuit traces arranged for electrical engagement with the external terminations. The component stability structure mechanically engages with the circuit board and inhibits the electronic device from moving relative to the circuit board.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: July 28, 2020
    Assignee: KEMET Electronics Corporation
    Inventors: John E. McConnell, John Bultitude
  • Patent number: 10720283
    Abstract: A solid electrolytic capacitor that comprises an anode that comprises a porous anode body and a dielectric layer is provided. The anode body is formed from a pressed and sintered valve metal powder having a specific charge of about 200,000 ?F*V/g or more and a phosphorous content of about 150 parts per million or less. A solid electrolyte overlies the anode.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: July 21, 2020
    Assignee: AVX Corporation
    Inventors: Masayuki Wakatsuki, Yusuke Sasaki, Yunhei Moriguchi
  • Patent number: 10685786
    Abstract: Fabricating a capacitor includes using a fluid jet to form a conduit in a sheet of material. A capacitor can include at least a portion of the sheet of material in an anode. In some instances, the sheet of material is porous before the fluid jet is used to form the conduit.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: June 16, 2020
    Assignee: Pacesetter, Inc.
    Inventors: Justin King, Ralph Jason Hemphill
  • Patent number: 10674623
    Abstract: A device, a house for the device and a method are disclosed herein. The device includes a first plate, a second plate facing an opposite direction, a side member integrally formed with the second plate, surrounding a space between the first the second plate, and a mid-plate coupled to the side member, extending into the space, the side member further including an aluminum substrate layer formed between a first and second surface exposed within the space, an aluminum oxide layer formed between the first surface and the aluminum substrate layer including multiple pores, a first layer formed conformally between the first surface and the aluminum oxide layer along the multiple pores and a surface of the aluminum oxide layer, the first layer comprising titanium, and a second layer formed on the first layer as to form the first surface, the second layer comprising titanium.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: June 2, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyunjung Jeong, Youngsoo Jang, Yunsung Ha, Yongwook Hwang, Changyoun Hwang
  • Patent number: 10643797
    Abstract: A capacitor assembly that is capable of performing well under the conditions of high humidity and temperature (e.g., 85% relative humidity/85° C.) is provided. The capacitor assembly comprises a solid electrolytic capacitor element, an anode termination that is in electrical connection with the anode body, cathode termination that is in electrical connection with the solid electrolyte, and casing material that encapsulates the capacitor element and leaves exposed at least a portion of the anode termination and the cathode termination. The casing material is formed from an epoxy composition that contains one or more inorganic oxide fillers and a resinous material that includes one or more epoxy resins crosslinked with a co-reactant, wherein inorganic oxide fillers about 75 wt. % or more of the epoxy composition, and vitreous silica constitutes about 30 wt. % or more of the total weight of inorganic oxide fillers in the epoxy composition.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: May 5, 2020
    Assignee: AVX Corporation
    Inventors: Ladislav Vilc, Marek Stabl, Ivan Horacek
  • Patent number: 10591523
    Abstract: A capacitive sensor is disclosed. The capacitive sensor includes a substrate, a first electrode and a second electrode formed on the substrate, an insulation layer formed on the substrate on which the first electrode and the second electrode are formed, and a sensing layer that is formed on the insulation layer and includes graphene.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: March 17, 2020
    Assignee: Korea University Research and Business Foundation
    Inventors: James Jungho Pak, Dae Seok Na
  • Patent number: 10366841
    Abstract: A conductive polymer layer of a electrolytic capacitor includes a conductive polymer and a polymer dopant. The polymer dopant includes; (A) a first unit originating from a first monomer having a polymerizable group and a sulfonate group; and (B) a second unit originating from a second monomer having a polymerizable group and a phosphorus-containing group. The phosphorus-containing group is represented by at least one of general formula (1); —P(?O)(OR1)(OR2), general formula (2); —PH(?O)(OR3), and general formula (3); —PH2(?O). In the general formulae (1) to (3), each of R1, R2 and R3 is independently a hydrogen atom, a hydrophilic group, a C1 to C3 alkyl group, or a cationic group.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: July 30, 2019
    Assignee: Panasonic Corporation
    Inventors: Youichirou Uka, Shintaro Tanimoto, Hiroshi Kojima
  • Patent number: 10354806
    Abstract: An electrolytic capacitor includes an anode body having a dielectric layer, and a solid electrolyte layer including a conductive polymer. The solid electrolyte layer includes the conductive polymer, an anion, and a cation. The anion is an anion corresponding to at least one acid selected from the group consisting of a phosphorus-containing oxoacid, sulfuric acid, and a carboxylic acid. The cation is a nitrogen-containing cation.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: July 16, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Yuichiro Tsubaki
  • Patent number: 10280289
    Abstract: An epoxy resin composition according to one embodiment of the present invention comprises an epoxy resin, a curing agent, and an inorganic filler, and the inorganic filler includes boron nitride on which a metal oxide film is formed.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: May 7, 2019
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Jina Gu, Gun Young Gil, Jae Man Park, Sung Jin Yun
  • Patent number: 10269501
    Abstract: Provided is a solid electrolytic capacitor including an anode body, a dielectric layer formed on the anode body, and a solid electrolyte layer that covers at least a part of the dielectric layer and includes a conductive polymer, the solid electrolyte layer including a first silicon-containing component and a second silicon-containing component, the first silicon-containing component being at least one selected from the group consisting of a first silane coupling agent and residues of the first silane coupling agent, the second silicon-containing component being at least one selected from the group consisting of a second silane coupling agent and residues of the second silane coupling agent, the first silane coupling agent including a first substituent that has a first functional group and is bonded with a silicon atom, and a hydrolytically condensable group, the second silane coupling agent including a second substituent that has a second functional group and is bonded with a silicon atom, and a hydrolytical
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: April 23, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Nobuyuki Yamaguchi
  • Patent number: 10186383
    Abstract: A capacitor that includes a porous metal base material, a dielectric layer formed on the porous metal base material, an upper electrode formed on the dielectric layer, a first terminal electrode electrically connected to the porous metal base material, and a second terminal electrode electrically connected to the upper electrode. The porous metal base material includes a high-porosity part and low-porosity parts, and the low-porosity parts are present at a pair of opposed side surfaces of the porous metal base material.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: January 22, 2019
    Assignee: MURATA MANUFACTURING CO., LTD
    Inventors: Kazuo Hattori, Noriyuki Inoue, Takeo Arakawa, Hiromasa Saeki
  • Patent number: 10176929
    Abstract: A solid electrolytic capacitor that includes a capacitor element that having an anode with a core portion and a porous portion, a dielectric layer covering the porous portion, and a cathode including a solid electrolyte layer covering at least part of the dielectric layer; an exterior body that encloses the capacitor element so as to expose an end of the anode; a first external electrode connected to the cathode; and a second external electrode connected to the end of the anode. The thickness of the porous portion at the end of the anode that is exposed from the exterior member is smaller than the thickness of the porous portion in a region covered by the cathode.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: January 8, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Hitoshi Kuromi
  • Patent number: 10079115
    Abstract: A solid electrolytic capacitor that includes an anode body, a dielectric overlying the anode body, a solid electrolyte that contains one or more conductive polymers and overlies the dielectric, and an external coating that overlies the solid electrolyte, is provided. The external coating includes at least one carbonaceous layer and at least one metal layer. In addition to the aforementioned layers, the external coating can also include at least one conductive polymer layer that can be disposed between the carbonaceous and metal layers. Among other things, such a conductive polymer layer can reduce the likelihood that the carbonaceous layer will delaminate from the solid electrolyte during use. Further, the notched geometry of the anode body itself is selected to minimize the risk of delamination of the external coating layers from the anode body. This combination of characteristics can increase the mechanical robustness of the part and improve its electrical performance.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: September 18, 2018
    Assignee: AVX Corporation
    Inventors: Lotfi Djebara, Ludek Kubes
  • Patent number: 10074484
    Abstract: A solid electrolytic capacitor includes anode, dielectric layer formed on anode, and conductive polymer layer formed on dielectric layer. A surface of dielectric layer is dotted with coupling particles. Conductive polymer layer covers coupling particles and is also in contact with dielectric layer. This enables to increase a self-repair capability for reducing leak current between the anode and a cathode in the solid electrolytic capacitor having the conductive polymer layer as a solid electrolytic layer.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: September 11, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Ryo Morioka
  • Patent number: 9959980
    Abstract: Disclosed is a solid electrolytic capacitor element including a dielectric layer, a first conductive polymer semiconductor layer, a second conductive polymer semiconductor layer and a conductor layer, formed in that order, on a tungsten anode body having an externally protruding lead wire, and the thickness of the thickest portion of the second conductive polymer semiconductor layer on the lower surface opposite the upper surface from which the lead wire protrudes is thinner than the thickness of the thickest portion of the second conductive polymer semiconductor layer on the side surfaces, and the thickness of the second conductive polymer semiconductor layer on the lower surface is greater than 2 ?m and less than 15 ?m.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: May 1, 2018
    Assignee: Showa Denko K.K.
    Inventors: Kazumi Naito, Shoji Yabe
  • Patent number: 9865402
    Abstract: An anode body for an electrolytic capacitor, prepared by sintering a tungsten powder to obtain a sintered body and subjecting the obtained sintered body to chemical conversion to form a dielectric layer comprising a tungsten trioxide compound on the surface of the sintered body, wherein the ratio of the hydration water in the tungsten trioxide compound becomes one molecule or less to 10 molecules of the tungsten trioxide compound. Use of the anode body of the present invention enables production of a tungsten capacitor, which is reduced in the capacitance change due to DC voltage (bias dependency).
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: January 9, 2018
    Assignee: SHOWA DENKO K.K.
    Inventors: Kazumi Naito, Ryuichi Mitsumoto
  • Patent number: 9558891
    Abstract: Disclosed is a polymerization solution for electrolytic polymerization containing borodisalicylic acid and/or a salt thereof as a supporting electrolyte, in which precipitation due to the hydrolysis of borodisalicylate ions is inhibited and which provides a conductive polymer exhibiting excellent heat resistance. The polymerization solution has: a solvent consisting of 100 to 80% by mass of water and 0 to 20% by mass of an organic solvent; at least one monomer having a ?-conjugated double bond; at least one supporting electrolyte selected from the group consisting of borodisalicylic acid and borodisalicylic salts; and at least one stabilizing agent selected from the group consisting of nitrobenzene and nitrobenzene derivatives, and the content of the stabilizing agent content is more than ? mol per 1 mol of the supporting electrolyte. A complex is formed by the stabilizing agent and borodisalicylic acid, and the formation of precipitation due to the hydrolysis of borodisalicylate ions is inhibited.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: January 31, 2017
    Assignee: NIPPON CHEMI-CON CORPORATION
    Inventors: Kenji Machida, Sekihiro Takeda, Ryo Muroi, Nozomu Kamiyama, Masashi Ozawa
  • Patent number: 9536673
    Abstract: A capacitor whose electrical properties can be stable under a variety of different conditions is provided. The solid electrolyte of the capacitor is formed from a combination of an in situ polymerized conductive polymer and a hydroxy-functional nonionic polymer. One benefit of such an in situ polymerized conductive polymer is that it does not require the use of polymeric counterions (e.g., polystyrenesulfonic anion) to compensate for charge, as with conventional particle dispersions, which tend to result in ionic polarization and instable electrical properties, particularly at the low temperatures noted above. Further, it is believed that hydroxy-functional nonionic polymers can improve the degree of contact between the polymer and the surface of the internal dielectric, which unexpectedly increases the capacitance performance and reduces ESR.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: January 3, 2017
    Assignee: AVX Corporation
    Inventors: Jan Petrzilek, Martin Biler
  • Patent number: 9190549
    Abstract: A method for forming a photovoltaic device includes depositing a p-type layer on a substrate. A barrier layer is formed on the p-type layer by exposing the p-type layer to an oxidizing agent. An intrinsic layer is formed on the barrier layer, and an n-type layer is formed on the intrinsic layer.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: November 17, 2015
    Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, BAY ZU PRECISION CO., LTD
    Inventors: Tze-Chiang Chen, Augustin J. Hong, Chien-Chih Huang, Yu-Wei Huang, Jeehwan Kim, Devendra K. Sadana, Chih-Fu Tseng
  • Patent number: 9190145
    Abstract: In a drive method for a memory element that includes an insulating substrate, a first electrode and a second electrode provided on the insulating substrate, and an inter-electrode gap portion provided between the first electrode and the second electrode and having a gap of the order of nanometers where a phenomenon of a change in resistance value between the first and second electrodes occurs, and that can perform a transition from a predetermined low-resistance state to a predetermined high-resistance state and a transition from the high-resistance state to the low-resistance state, a current pulse is applied to the memory element by a constant current circuit upon the transition from the high-resistance state to the low-resistance state.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: November 17, 2015
    Assignees: National Institute of Advanced Industrial Science and Technology, Funai Electric Co., Ltd.
    Inventors: Tsuyoshi Takahashi, Yuichiro Masuda, Shigeo Furuta, Touru Sumiya, Masatoshi Ono, Yutaka Hayashi, Toshimi Fukuoka, Tetsuo Shimizu, Kumaragurubaran Somu, Hiroshi Suga, Yasuhisa Naitou
  • Patent number: 9183990
    Abstract: Provided is an electroconductive polymer composition with a good film forming property. Also, provided is an electroconductive polymer material with a high electroconductivity and a high transparency as well as an electroconductive substrate having the electroconductive polymer material on a substrate, and an electrode. Further, provided is an electronic device having the electrode as well as a solid electrolytic capacitor with a high capacitance and a low ESR. Disclosed is an electroconductive polymer composition, containing an electroconductive polymer in which a dopant is doped, a water-soluble polymer resin, and a solvent which contains water and an organic solvent whose dielectric constant is higher than that of water.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: November 10, 2015
    Assignee: NEC Tokin Corporation
    Inventors: Tomoki Nobuta, Yasuhisa Sugawara, Satoshi Suzuki, Yasuhiro Tomioka
  • Patent number: 9183991
    Abstract: A wet electrolytic capacitor that contains a casing within which is positioned an anode formed from an anodically oxidized sintered porous body and a fluidic working electrolyte is provided. The casing contains a conductive coating disposed on a surface of a metal substrate. The casing contains a metal substrate coated with a conductive coating. The conductive coating contains a conductive polymer layer formed through anodic electrochemical polymerization (“electro-polymerization”) of a colloidal suspension on the surface of the metal substrate. The conductive coating also contains a precoat layer that is discontinuous in nature and contains a plurality of discrete projections of a conductive material that are deposited over the surface of the metal substrate in a spaced-apart fashion so that they form “island-like” structures.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: November 10, 2015
    Assignee: AVX Corporation
    Inventors: Jan Petrzilek, Martin Biler, Mitchell D. Weaver
  • Patent number: 9166068
    Abstract: An electronic device comprising a substrate; a pair of stacks of polar semiconductor materials which create a charge by spontaneous and/or piezoelectric polarization; one of the pair of stacks having a spontaneous and/or piezoelectric polarity which is in a direction opposite to the other of the pair of stacks; whereby due to the opposing polarities, the polarization is balanced. A method of substantially eliminating the bias required to offset polarization charges in an electronic device having a heterobarrier comprising providing a substrate; growing at least one pair of stacks of semiconductor materials; one of the pair of stacks having a spontaneous and/or piezoelectric polarity which is opposite to the other of the pair of stacks; whereby due to the opposing polarities, the polarization is balanced to substantially eliminate the need for a voltage bias.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: October 20, 2015
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Pankaj B. Shah
  • Patent number: 9012092
    Abstract: An embodiment of the invention relates to providing an electrical component that provides an electrical functionality, the component comprising: a fiber felt comprising a tangle of fibers and characterized by a fill factor; and at least two layers of material formed on the fibers that contribute to providing the electrical functionality.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: April 21, 2015
    Assignee: Laor Consulting LLC
    Inventor: Herzel Laor
  • Publication number: 20150085428
    Abstract: A solid electrolytic capacitor comprises a positive electrode, a dielectric layer, a silane coupling layer, a conductive polymer layer, and a negative electrode layer. The dielectric layer is provided on the positive electrode. The silane coupling layer is provided on the dielectric layer. The conductive polymer layer is provided on the silane coupling layer. The negative electrode layer is provided on the conductive polymer layer. The silane coupling layer comprises a first silane coupling layer and a second silane coupling layer. The first silane coupling layer covers a part of a surface of the dielectric layer facing the conductive polymer layer. The second silane coupling layer covers at least a part of a portion exposed from the first silane coupling layer on the surface of the dielectric layer facing the conductive polymer layer.
    Type: Application
    Filed: November 28, 2014
    Publication date: March 26, 2015
    Inventor: KEIKO KOSUGE
  • Patent number: 8971022
    Abstract: An electrode foil including a substrate made of metal material, a first layer made of metal oxide and formed on the substrate, a second layer made of TiNxOy (x>y>0) and formed on the first layer, and a third layer made of TiNxOy (0<x<y) and formed on the second layer.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: March 3, 2015
    Assignee: Panasonic Corporation
    Inventors: Hitoshi Ishimoto, Masashi Shoji, Hiroki Kamiguchi
  • Patent number: 8947857
    Abstract: A capacitor assembly for use in high voltage and high temperature environments is provided. More particularly, the capacitor assembly includes a capacitor element containing an anodically oxidized porous, sintered body that is coated with a manganese oxide solid electrolyte. To help facilitate the use of the capacitor assembly in high voltage (e.g., above about 35 volts) and high temperature (e.g., above about 175° C.) applications, the capacitor element is enclosed and hermetically sealed within a housing in the presence of a gaseous atmosphere that contains an inert gas.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: February 3, 2015
    Assignee: AVX Corporation
    Inventors: Martin Biler, Jan Petrzilek, Ivana Zednickova
  • Patent number: 8934216
    Abstract: The present invention provides a high dielectric film for a film capacitor obtained by molding a film forming composition for a film capacitor comprising a thermoplastic resin (A) and surface-treated high dielectric inorganic particles (B) obtained by treating the surfaces of high dielectric inorganic particles (b1) having a dielectric constant (20° C., 1 kHz) of 100 or more with a low dielectric compound (b2) having a dielectric constant (20° C., 1 kHz) of 10 or less. This high dielectric film for a film capacitor can restrain the decrease of electrical insulating property, in spite of the high dielectric inorganic particles being dispersed at a high filling rate.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: January 13, 2015
    Assignee: Daikin Industries, Ltd.
    Inventors: Kouji Yokotani, Miharu Ota, Mayuko Tatemichi, Nobuyuki Komatsu, Eri Mukai, Meiten Koh
  • Publication number: 20140368974
    Abstract: A capacitor assembly for use in high voltage and high temperature environments is provided. More particularly, the capacitor assembly includes a solid electrolytic capacitor element containing an anode body, a dielectric overlying the anode, and a solid electrolyte overlying the dielectric. To help facilitate the use of the capacitor assembly in high voltage applications, it is generally desired that the solid electrolyte is formed from a dispersion of preformed conductive polymer particles. In this manner, the electrolyte may remain generally free of high energy radicals (e.g., Fe2+ or Fe3+ ions) that can lead to dielectric degradation, particularly at relatively high voltages (e.g., above about 60 volts). Furthermore, to help protect the stability of the solid electrolyte at high temperatures, the capacitor element is enclosed and hermetically sealed within a housing in the presence of a gaseous atmosphere that contains an inert gas.
    Type: Application
    Filed: September 2, 2014
    Publication date: December 18, 2014
    Inventors: Ladislav Vilc, Martin Biler, Stanislav Zednicek
  • Publication number: 20140334068
    Abstract: A solid electrolytic capacitor that contains an anode body, dielectric located over and/or within the anode body, an adhesion coating overlying the dielectric, and a solid electrolyte overlying the dielectric and adhesion coating that contains a conductive polymer. The adhesion coating is multi-layered and employs a resinous layer in combination with a discontinuous layer containing a plurality of discrete nanoprojections of a manganese oxide (e.g., manganese dioxide).
    Type: Application
    Filed: May 1, 2014
    Publication date: November 13, 2014
    Applicant: AVX Corporation
    Inventors: Kiyofumi Aoki, Hiromasa Noborio, Junya Tatsuno, Koji Inazawa
  • Publication number: 20140334067
    Abstract: A solid electrolytic capacitor that contains an anode body formed from an electrically conductive powder, dielectric located over and/or within the anode body, an adhesion coating overlying the dielectric, and a solid electrolyte overlying the adhesion coating is provided. The powder has a high specific charge and in turn a relative dense packing configuration. Despite being formed from such a powder, the present inventors have discovered that the conductive polymer can be readily impregnated into the pores of the anode. This is accomplished, in part, through the use of a discontinuous precoat layer in the adhesion coating that overlies the dielectric. The precoat layer contains a plurality of discrete nanoprojections of a manganese oxide (e.g., manganese dioxide).
    Type: Application
    Filed: May 1, 2014
    Publication date: November 13, 2014
    Applicant: AVX Corporation
    Inventors: Kiyofumi Aoki, Hiromasa Noborio, Junya Tatsuno, Koji Inazawa
  • Publication number: 20140334069
    Abstract: A solid electrolytic capacitor that contains an anode body, dielectric overlying the anode body, adhesion coating overlying the dielectric, and solid electrolyte overlying the adhesion coating. The solid electrolyte contains an inner conductive polymer layer and outer conductive polymer layer, at least one of which is formed from a plurality of pre-polymerized conductive polymer particles. Furthermore, the adhesion coating contains a discontinuous precoat layer containing a plurality of discrete nanoprojections of a manganese oxide (e.g., manganese dioxide).
    Type: Application
    Filed: May 1, 2014
    Publication date: November 13, 2014
    Applicant: AVX Corporation
    Inventors: Jan Petrzilek, Martin Biler
  • Publication number: 20140313638
    Abstract: [Problem] To obtain a solid electrolytic capacitor capable of suppressing leakage current and a method for manufacturing the solid electrolytic capacitor. [Solution] A solid electrolytic capacitor including anode body 2, first dielectric layer 3a formed on anode body 2 and including metal oxide, second dielectric layer 3b formed on first dielectric layer 3a and including an insulating polymer, third dielectric layer 3c formed on second dielectric layer 3b and including a dielectric substance having a higher dielectric constant than that of the metal oxide, and solid electrolyte layer 4 formed on third dielectric layer 3c.
    Type: Application
    Filed: October 18, 2012
    Publication date: October 23, 2014
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Toshiyuki Kato, Tomohiro Mitsuyama
  • Publication number: 20140307365
    Abstract: A solid electrolytic capacitor package structure for decreasing equivalent series resistance (ESR), includes a capacitor unit, a package unit and a conductive unit. The capacitor unit includes a plurality of first stacked-type capacitors sequentially stacked on top of one another and electrically connected with each other. The package unit includes a package body for enclosing the capacitor unit. The conductive unit includes a first conductive terminal and a second conductive terminal having a through hole, and the stacked-type capacitors are electrically connected between the first and the second conductive terminals. The bottommost first stacked-type capacitor is positioned on the top surface of the second conductive terminal through conductive paste that has a first conductive portion disposed between the bottommost first stacked-type capacitors and the top surface of the second conductive terminal and a second conductive portion filling in the through groove to connect with the first conductive portion.
    Type: Application
    Filed: April 11, 2013
    Publication date: October 16, 2014
    Applicant: APAQ TECHNOLOGY CO., LTD.
    Inventors: CHI-HAO CHIU, CHING-FENG LIN, KUN-HUANG CHANG, CHUN-CHIA HUANG
  • Publication number: 20140268501
    Abstract: A capacitor assembly that is capable of performing under extreme conditions, such as at high temperatures and/or high voltages, is provided. The ability to perform at high temperature is achieved in part by enclosing and hermetically sealing the capacitor element within a housing in the presence of a gaseous atmosphere that contains an inert gas, thereby limiting the amount of oxygen and moisture supplied to the solid electrolyte of the capacitor element. Furthermore, the present inventors have also discovered that the ability to perform at high voltages can be achieved through a unique and controlled combination of features relating to the formation of the anode, dielectric, and solid electrolyte. For example, the solid electrolyte is formed from a combination of a conductive polymer and a hydroxy-functional nonionic polymer.
    Type: Application
    Filed: March 6, 2014
    Publication date: September 18, 2014
    Applicant: AVX Corporation
    Inventors: Martin Biler, Jan Petrzilek
  • Patent number: 8810997
    Abstract: A solid electrolytic capacitor with suppressed occurrence of short circuit is provided. The solid electrolytic capacitor includes an anode body having a surface on which a dielectric film is formed, and a conductive polymer layer formed on the dielectric film. The conductive polymer layer includes at least a first conductive polymer layer formed on the dielectric film and a second conductive polymer layer formed on the first conductive polymer layer. A silane compound in the first conductive polymer layer and the silane compound in the second conductive polymer layer have respective concentrations different from each other.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: August 19, 2014
    Assignees: SANYO Electric Co., Ltd., SAGA SANYO Industries Co., Ltd.
    Inventors: Nobuyuki Yamaguchi, Koji Fukuchi, Yasuhiro Tsunezumi
  • Publication number: 20140211371
    Abstract: An improved capacitor is provided with at least one anode having a dielectric on the anode and an anode lead extending from the anode. A conductive cathode layer is on the dielectric. An anode leadframe is electrically connected to the anode and a cathode leadframe is electrically connected to the cathode. An encapsulant encases the anode, a portion of the anode leadframe and a portion of the cathode leadframe such that the anode leadframe extends from the encapsulant to form an external anode leadframe and the cathode leadframe extends from the encapsulant to form an external cathode leadframe. At least one secondary electrical connection is provided wherein the secondary electrical connection is in electrical contact with the cathode and extends through the encapsulant to the external cathode leadframe or the secondary electrical contact is in electrical contact with the anode and extends through the encapsulant to the external anode leadframe.
    Type: Application
    Filed: January 23, 2014
    Publication date: July 31, 2014
    Applicant: Kemet Electronics Corporation
    Inventors: Brandon Summey, Jeffrey Poltorak
  • Patent number: 8787002
    Abstract: A winding-type solid electrolytic capacitor package structure includes a capacitor unit, a package unit and a conductive unit. The conductive unit includes a winding-type capacitor having a first conductive pin and a second conductive pin. The package unit includes a package body for enclosing the capacitor unit. The conductive unit includes a first conductive terminal electrically connected to the first conductive pin and a second conductive terminal electrically connected to the second conductive pin. The first conductive terminal has a first embedded portion contacting the first conductive pin and enclosed by the package body and a first exposed portion connected to the first embedded portion and exposed from the package body. The second conductive terminal has a second embedded portion contacting the second conductive pin and enclosed by the package body and a second exposed portion connected to the second embedded portion and exposed from the package body.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: July 22, 2014
    Assignee: Apaq Technology Co., Ltd.
    Inventors: Ching-Feng Lin, Chi-Hao Chiu, Kun-Huang Chang
  • Patent number: 8780532
    Abstract: There is provided a solid electrolytic capacitor, including: a condenser element including a chip body molded by sintering, a positive electrode terminal contact layer formed on one area of the chip body to be exposed to the outside, an insulating layer formed in the entire area or some area other than one area in which the positive electrode terminal contact layer is formed, and a negative electrode layer stacked on the insulating layer; a negative electrode extracting layer stacked to be electrically connected with the negative electrode layer; a negative electrode terminal stacked on the negative electrode extracting layer; a positive electrode terminal stacked on the positive electrode terminal contact layer.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: July 15, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae Kwang Kim, Jun Suk Jung, Chang Sub Song
  • Patent number: 8780529
    Abstract: Provided is a method of manufacturing a solid electrolytic capacitor that suppresses spreading up of a solution. The method includes forming a porous sintered body made of a valve metal and having an anode wire sticking out therefrom; forming an insulating layer made of a fluorine resin, so as to surround the anode wire; and forming a dielectric layer on the porous sintered body; forming a solid electrolyte layer on the dielectric layer, after forming the insulating layer. The process of forming the insulating layer includes melting granular particles made of a fluorine resin.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: July 15, 2014
    Assignee: Rohm Co., Ltd.
    Inventor: Makoto Aoyama
  • Patent number: 8758454
    Abstract: Provided are a tantalum solid electrolytic capacitor having a reduced leakage current and a method for manufacturing the tantalum solid electrolytic capacitor. A dielectric layer of the solid electrolytic capacitor includes a first dielectric layer in contact with an anode and a second dielectric layer covering the first dielectric layer and making contact with an electrolyte layer. The first dielectric layer is made of an oxide of the anode, the oxide consisting essentially of an amorphous component. The second dielectric layer is formed of dielectric particles having a higher dielectric constant than the first dielectric layer. The dielectric particles includes first dielectric particles in contact with the first dielectric layer and second dielectric particles out of contact with the first dielectric layer. The first dielectric particles have a smaller average particle diameter than the second dielectric particles.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: June 24, 2014
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Tomohiro Mitsuyama, Toshiyuki Kato
  • Patent number: 8724294
    Abstract: A solid electrolytic capacitor having an anode element, a dielectric film covering a surface of the anode element, a conductive polymer layer provided on the dielectric film, and a water-repellent portion provided on the dielectric film not in contact with the conductive polymer layer and containing silicone oil is provided.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: May 13, 2014
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Yousuke Abe, Atsushi Furuzawa
  • Patent number: 8681477
    Abstract: An anode includes a first region adjacent to a root of an anode lead, a second region at a corner of one end surface of the anode, a third region between the first region and the second region, and a fourth region in the interior of the anode into which the anode lead is embedded. The thicknesses of a dielectric layer in the first region and the second region are greater than the thicknesses of the dielectric layer in the third region and the fourth region.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: March 25, 2014
    Assignee: SANYO Electric Co., Ltd.
    Inventor: Masaaki Nemoto
  • Publication number: 20140071590
    Abstract: A stacked-type solid electrolytic capacitor package structure includes a capacitor unit, a package unit and a conductive unit. The capacitor unit includes a plurality of capacitors stacked on top of one another. The package unit includes a package body enclosing the capacitors. The package body has a top surface defining a package length, a package width and an effective package, and the package width is substantially between 85% and 95% of the package length. The conductive unit includes a first conductive terminal electrically connected to the positive portion of the capacitor and a second conductive terminal electrically connected to the negative portion of the capacitor. One part of the first conductive terminal and one part of the second conductive terminal are enclosed by the package body, and another part of the first conductive terminal and another part of the second conductive terminal are exposed from the package body.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 13, 2014
    Applicant: APAQ TECHNOLOGY CO., LTD.
    Inventors: Ching-Feng LIN, Chi-Hao CHIU, Kun-Huang CHANG
  • Patent number: 8659875
    Abstract: A capacitor includes an electrode and a dielectric layer over the electrode. The dielectric layer includes plural metal oxide particles which are spread, and have an aperture constituted by a space provided between the metal oxide particles. The capacitor further includes an insulating portion on a portion of the electrode facing an opening of the aperture of the dielectric layer. The insulating portion covers the opening of the aperture. This capacitor prevents short-circuiting between the electrodes, thus being highly reliable.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: February 25, 2014
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Kagata, Masayuki Hogiri
  • Publication number: 20140022701
    Abstract: Disclosed is a polymerization solution for electrolytic polymerization having a small environmental load, having excellent economic efficiency and capable of producing a conductive polymer exhibiting excellent heat resistance. The polymerization solution has: a solvent consisting of 100 to 80% by mass of water and 0 to 20% by mass of an organic solvent; at least one monomer selected from the group consisting of 3,4-disubstituted thiophenes; and at least one organic non-sulfonate supporting electrolyte having an anion with the molecular weight of 200 or more. A conductive polymer film densely filled with polymer particles is obtained by performing electrolytic polymerization using the polymerization solution. A polymer electrode provided with the conductive polymer film exerts excellent heat resistance and the electrochemical activity of the polymer electrode will hardly deteriorate even when being subjected to high temperatures.
    Type: Application
    Filed: March 1, 2012
    Publication date: January 23, 2014
    Applicant: NIPPON CHEMI-CON CORPORATION
    Inventors: Kenji Machida, Sekihiro Takeda, Ryo Muroi, Nozomu Kamiyama, Masashi Ozawa
  • Publication number: 20130342966
    Abstract: To provide a solid electrolytic capacitor capable of high performance, the capacitor including: an anode element made of tantalum or niobium; a dielectric film disposed on the anode element; and a solid electrolytic layer disposed on the dielectric film, the dielectric film including: a first dielectric film made of an oxide of the tantalum or niobium, formed on a surface of the anode element; and a second dielectric film made of a composite metal oxide having a perovskite structure, formed on the first dielectric film.
    Type: Application
    Filed: March 8, 2012
    Publication date: December 26, 2013
    Applicants: SAGA SANYO INDUSTRIES CO., LTD., SANYO ELECTRIC CO., LTD.
    Inventor: Kazutoyo Horio
  • Publication number: 20130321984
    Abstract: One object is to provide a porous capacitor having increased insulation reliability. In accordance with one aspect, the porous capacitor includes: a first conductor layer and a second conductor layer opposed to each other at a predetermined distance; a dielectric layer made of an oxidized valve metal and disposed between the first conductor layer and the second conductor layer; a large number of holes formed through the dielectric layer and oriented substantially orthogonal to the first conductor layer and the second conductor layer; and first electrodes and second electrodes formed of a conductive material filled in the holes; and insulation parts insulating the first electrodes from the second conductor layer and insulating the second electrodes from the first conductor layer. The thicknesses of the first conductor layer and the second conductor layer are equal to or greater than half of the inner diameter of the holes.
    Type: Application
    Filed: March 22, 2013
    Publication date: December 5, 2013
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Hidetoshi MASUDA, Kenichi Ota
  • Patent number: 8576543
    Abstract: A solid electrolytic capacitor a solid electrolytic capacitor that includes an anode body, a dielectric overlying the anode body, and a solid electrolyte overlying the dielectric is provided. The capacitor also comprises a conductive polymer coating that overlies the solid electrolyte and includes nanoparticles formed from a poly(3,4-ethylenedioxythiophene) quaternary onium salt.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: November 5, 2013
    Assignee: AVX Corporation
    Inventors: Martin Biler, Lubomir Kubac, Radana Becvarikova
  • Patent number: RE47373
    Abstract: A method for forming a hermetically sealed capacitor including: forming an anode; forming a dielectric on the anode; forming a conductive layer on the dielectric thereby forming a capacitive element; inserting the capacitive element into a casing; electrically connecting the anode to an exterior anode connection; electrically connecting the cathode to an exterior cathode connection; filling the casing with an atmosphere comprising a composition, based on 1 kg of atmosphere, of at least 175 g to no more than 245 g of oxygen, at least 7 g to no more than 11 g of water, at least 734 grams to no more than 818 grams of nitrogen and no more than 10 grams of a minor component; and hermetically sealing the casing with the atmosphere with the capacitive element contained in the casing.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: April 30, 2019
    Assignee: KEMET Electronics Corporation
    Inventors: Qingping Chen, Yuri Freeman, Steven C. Hussey