Patents Assigned to Kemet Electronics
  • Patent number: 8902565
    Abstract: A capacitor has first planer internal electrodes in electrical contact with a first external termination. Second planer internal electrodes are interleaved with the first planer internal electrodes wherein the second planer internal electrodes are in electrical contact with a second external termination. A dielectric is between the first planer internal electrodes and the second planer internal electrodes and at least one of the external terminations comprises a material selected from a polymer solder and a transient liquid phase sintering adhesive.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: December 2, 2014
    Assignee: Kemet Electronics Corporation
    Inventors: John E. McConnell, John Bultitude, Reggie Phillips, Robert Allen Hill, Garry L. Renner, Philip M. Lessner, Antony P. Chacko, Jeffrey Bell, Keith Brown
  • Patent number: 8896986
    Abstract: A solid electrolytic capacitor with an anode and a dielectric on the anode. A cathode is on the dielectric and a conductive coating on the dielectric. A cathode lead is electrically connected to the conductive coating by an adhesive selected from the group consisting of a transient liquid phase sinterable material and polymer solder.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: November 25, 2014
    Assignee: Kemet Electronics Corporation
    Inventors: Antony P. Chacko, John E. McConnell, Philip M. Lessner, Randolph S. Hahn, John Bultitude
  • Patent number: 8896985
    Abstract: A capacitor with an anode, a dielectric on the anode and a cathode on the dielectric. A blocking layer is on the cathode. A metal filled layer is on said blocking layer and a plated layer is on the metal filled layer.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: November 25, 2014
    Assignee: Kemet Electronics Corporation
    Inventors: Antony P. Chacko, Randolph S. Hahn
  • Publication number: 20140340819
    Abstract: An improved process for forming a capacitor, and improved capacitor formed thereby is described. The process includes: providing an anode comprising a dielectric thereon; applying a first layer of an intrinsically conducting polymer on the dielectric to form a capacitor precursor; applying at least one subsequent layer of an intrinsically conducting polymer on the first layer from a dispersion; and treating the capacitor precursor at a temperature of at least 50° C. no more than 200° C. at a relative humidity of at least 25% up to 100%, or fusing the layered structure by swelling the layered structure with a liquid and at least partially removing the liquid.
    Type: Application
    Filed: May 17, 2013
    Publication date: November 20, 2014
    Applicant: Kemet Electronics Corporation
    Inventors: Hong Zhang, Qingping Chen, Randolph R. Hahn
  • Patent number: 8885324
    Abstract: An improved overvoltage protection component is provided. The overvoltage protection component has a first internal electrode contained within a dielectric material. The first internal electrode is electrically connected to a first termination and a second internal electrode contained within the ceramic dielectric material is electrically connected to a second termination.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: November 11, 2014
    Assignee: Kemet Electronics Corporation
    Inventors: John Bultitude, Lonnie G. Jones, Jeffrey W. Bell
  • Patent number: 8885319
    Abstract: New designs for multilayer ceramic capacitors are described with high voltage capability without the need of coating the part to resist surface arc-over. One design combines a high overlap area for higher capacitance while retaining a high voltage capability. A variation of this design has increased voltage capability over this design as well as another described in the prior art although overlap area and subsequently capacitance is lowered in this case. These designs are compared to the prior art in examples below.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: November 11, 2014
    Assignee: Kemet Electronics Corporation
    Inventors: John Bultitude, James R. Magee, Lonnie G. Jones
  • Patent number: 8873219
    Abstract: A method of forming a stacked electronic component, and an electronic component formed by the method wherein the method includes: providing a multiplicity of electronic components wherein each electronic component comprises a first external termination and a second external termination; providing a first lead frame plate and a second lead frame plate wherein the first lead frame plate and the second lead frame plate comprises barbs and leads; providing a molded case comprising a cavity and a bottom; and forming a sandwich of electronic components in an array between the first lead frame plate and the second lead frame plate with the barbs protruding towards the electronic components and the leads extending through the bottom.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: October 28, 2014
    Assignee: Kemet Electronics Corporation
    Inventors: Maurice Perea, Allen Hill, Reggie Phillips
  • Patent number: 8848343
    Abstract: An improved capacitor is described. The capacitor has an anode with an anode lead wire extending from a first face of the anode. A dielectric layer is on the anode and a cathode is on the dielectric. An anode lead with an anode base and a cavernous anode protrusion extending from the base is provided wherein the anode lead wire is in electrical contact with the anode protrusion. A cathode lead with a cathode base is provided wherein the cathode base is in electrical contact with the cathode on a side face wherein the side face is adjacent the first face and the cathode base and said anode base are coplanar.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: September 30, 2014
    Assignee: Kemet Electronics Corporation
    Inventors: David Jacobs, Sheng Jie Xu, Shao Jian Chen, Xiao Juan Ye, Keith Lee Moore
  • Patent number: 8840685
    Abstract: An improved capacitor, and method for making the capacitor, is described. The capacitor has an anode and a dielectric on the anode. A cathode layer is on the dielectric wherein the cathode layer comprises at least one conductive layer and an insulative adhesion enhancing layer.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: September 23, 2014
    Assignee: Kemet Electronics Corporation
    Inventors: Antony P. Chacko, Debra L. Naramore
  • Patent number: 8842418
    Abstract: Provided is a method for forming a capacitor. The method includes: providing an anode with a dielectric thereon and a conductive node in electrical contact with the anode; applying a conductive seed layer on the dielectric; forming a conductive bridge between the conductive seed layer and the conductive node; applying voltage to the anode; electrochemically polymerizing a monomer thereby forming an electrically conducting polymer of monomer on the conductive seed layer; and disrupting the conductive bridge between the conductive seed layer and the conductive node.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: September 23, 2014
    Assignee: Kemet Electronics Corporation
    Inventors: Jeffrey Poltorak, Brandon K. Summey, Yongjian Qiu
  • Publication number: 20140268494
    Abstract: A method for increasing surface area of a valve metal particle is provided as is an improved valve metal particle provided thereby. The method includes charging a mill apparatus with a valve metal powder and a media wherein the media has an average diameter of at least 0.01 cm to no more than 0.3175 cm. The valve metal powder is then milled at an average kinetic energy of no more than 3,000 ergs per media particle to obtain a milled powder.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: Kemet Electronics Corporation
    Inventors: Brady A. Jones, Matthew W. Dufur, James Allan Fife
  • Publication number: 20140232485
    Abstract: A discharge capacitor for use in electronic circuits is described. The discharge capacitor has first internal electrodes in electrical contact with a first external termination and second internal electrodes parallel to and interleaved with the first internal electrodes wherein the second internal electrodes are in electrical contact with a second external termination. A dielectric is between the first internal electrodes and adjacent second internal electrodes. A first discharge gap is between at least one first internal electrode of said first internal electrodes and said second external termination.
    Type: Application
    Filed: April 28, 2014
    Publication date: August 21, 2014
    Applicant: Kemet Electronics Corporation
    Inventors: John Bultitude, Mark R. Laps, Lonnie G. Jones
  • Publication number: 20140230210
    Abstract: New designs for multilayer ceramic capacitors are described with high voltage capability without the need of coating the part to resist surface arc-over. One design combines a high overlap area for higher capacitance whilst retaining a high voltage capability. A variation of this design has increased voltage capability over this design as well as another described in the prior art although overlap area and subsequently capacitance is lowered in this case. These designs are compared to the prior art in examples below.
    Type: Application
    Filed: April 30, 2014
    Publication date: August 21, 2014
    Applicant: Kemet Electronics Corporation
    Inventors: John Bultitude, James R. Magee, Lonnie G. Jones
  • Patent number: 8808403
    Abstract: A process for forming a solid electrolytic capacitor and an electrolytic capacitor formed by the process. The process includes: providing an anode wherein the anode comprises a porous body and an anode wire extending from the porous body; apply a thin polymer layer onto the dielectric, and forming a dielectric on the porous body to form an anodized anode; applying a first slurry to the anodized anode to form a blocking layer wherein the first slurry comprises a first conducting polymer with an median particle size of at least 0.05 ?m forming a layer of crosslinker on the blocking layer; and applying a layer of a second conducting polymer on the layer of crosslinker.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: August 19, 2014
    Assignee: Kemet Electronics Corporation
    Inventors: Yongjian Qiu, Randolph S. Hahn, Kristen Key, Qingping Chen
  • 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: 8771381
    Abstract: A process for preparing a solid electrolytic capacitor comprising application of a non-ionic polyol prior to application of a conducting polymer layer.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: July 8, 2014
    Assignee: Kemet Electronics Corporation
    Inventors: Qingping Chen, Hong Zhang, Antony P. Chacko, Philip M. Lessner, Randolph S. Hahn, Yongjian Qiu, Keith R. Brenneman
  • Publication number: 20140177132
    Abstract: An improved method for forming a capacitor is provided as is a capacitor, or electrical component, formed by the method. The method includes providing an aluminum containing anode with an aluminum oxide dielectric thereon; forming a cathode on a first portion of the aluminum oxide dielectric; bonding an anode lead to the aluminum anode on a second portion of the aluminum oxide by a transient liquid phase sintered conductive material thereby metallurgical bonding the aluminum anode to the anode lead; and bonding a cathode lead to said cathode.
    Type: Application
    Filed: February 28, 2014
    Publication date: June 26, 2014
    Applicant: Kemet Electronics Corporation
    Inventors: JOHN E. MCCONNELL, GARRY L. RENNER, JOHN BULTITUDE
  • Publication number: 20140174268
    Abstract: In a cutting apparatus, a continuous element with a row of electrochemical cells for lithium batteries is supplied along a supply path on which there are sequentially arranged, a cutting device and two dragging devices, each having a shuttle element that has an operating unit associated with the continuous element.
    Type: Application
    Filed: February 7, 2012
    Publication date: June 26, 2014
    Applicant: KEMET ELECTRONICS ITALIA S.R.L.
    Inventor: Massimiliano Sale
  • Patent number: 8760848
    Abstract: A capacitor assembly with a substrate having a first face and a second face. A multiplicity of capacitors are mounted on the first face wherein each capacitor has a first lead and a second lead of opposite polarity to the first lead. A bridge is in electrical contact with multiple first leads. A tree is in electrical contact with the bridge wherein the tree passes through a via of the substrate and is in electrical contact with a first trace of the second face. A second trace is on the second face wherein the second lead is in electrical contact with the second trace.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: June 24, 2014
    Assignee: Kemet Electronics Corporation
    Inventors: John D. Prymak, Peter Par Blais, George Haddox, Michael Prevallet, Jim Piller, Chris Stolarski, Chris Wayne
  • Publication number: 20140160632
    Abstract: Provided herein is an improved capacitor and a method for forming an improved capacitor. The method includes providing an anode and forming a dielectric on the anode. A linear-hyperbranched polymer is formed and a conductive polymer dispersion is prepared comprising at least one conducting polymer, one polyanion and the linear-hyperbranched polymer. A layer of the conductive polymer dispersion if formed wherein said dielectric is between the anode and the layer.
    Type: Application
    Filed: December 6, 2013
    Publication date: June 12, 2014
    Applicant: Kemet Electronics Corporation
    Inventors: Antony P. Chacko, Gopakumar Sivasankarapillai, Yaru Shi, Philip M. Lessner