Abstract: An improved multilayer ceramic capacitor is described. The multilayered ceramic capacitor comprises first internal electrodes and second internal electrodes. The first internal electrodes and said second internal electrodes are parallel with dielectric there between. A first external termination is in electrical connection with the first internal electrodes and a second external termination is in electrical contact with the second internal electrodes. A closed void layer, comprising at least one closed void, is between electrodes.
Abstract: An improved multilayer ceramic capacitor is described. The multilayered ceramic capacitor comprises first internal electrodes and second internal electrodes. The first internal electrodes and said second internal electrodes are parallel with dielectric there between. A first external termination is in electrical connection with the first internal electrodes and a second external termination is in electrical contact with the second internal electrodes. A closed void layer, comprising at least one closed void, is between electrodes.
Abstract: An improved process for forming a conjugated thiophene precursor is described as in the formation of an improved polymer prepared from the conjugated thiophene and an improved capacitor formed from the improved polymer. The improved process includes forming a thiophene mixture comprising thiophene monomer, unconjugated thiophene oligomer, optionally a solvent and heating the thiophene mixture at a temperature of at least 100° C. to no more than the lower of 250° C. or the boiling point of a component of said thiophene mixture with the lowest boiling point temperature.
Abstract: A capacitor, and method for making the capacitor, is provided with improved charging characteristics. The capacitor has an anode, a cathode comprising a conductive polymer layer and a work function modifier layer adjacent the conductive polymer layer and a dielectric layer between the anode and the cathode.
Type:
Grant
Filed:
January 2, 2019
Date of Patent:
December 31, 2019
Assignee:
KEMET Electronics Corporation
Inventors:
Antony P. Chacko, Yaru Shi, Robert Ramsbottom, John T. Kinard, John Joseph Ols
Abstract: An MLCC with an identification mark consisting of non-active internal electrodes which can be used to determine chip orientation for mounting or reeling. This allows an MLCC with substantially similar width and thickness to be oriented with the electrodes in a preferred direction (either vertical or horizontal with respect to the board) that results in the minimum noise and vibration compared to other orientations. The presence of an identification mark can also allow for a means of preferentially orienting an MLCC which has an active area that is offset from the geometric center of the part.
Abstract: An improved multilayer ceramic capacitor is described. The multilayered ceramic capacitor comprises first internal electrodes and second internal electrodes. The first internal electrodes and said second internal electrodes are parallel with dielectric there between. A first external termination is in electrical connection with the first internal electrodes and a second external termination is in electrical contact with the second internal electrodes. A closed void layer, comprising at least one closed void, is between electrodes.
Abstract: A solid electrolytic capacitor and method for forming a solid electrolytic capacitor with high temperature leakage stability is described. The solid electrolytic capacitor has improved leakage current and is especially well suited for high temperature environments such as down-hole applications.
Type:
Grant
Filed:
September 30, 2015
Date of Patent:
September 3, 2019
Assignee:
KEMET Electronics Corporation
Inventors:
Antony P. Chacko, Randolph S. Hahn, Pablo Antonio Ruiz
Abstract: An electronic component is described wherein the electronic component comprises a stack of electronic elements comprising a transient liquid phase sintering adhesive between and in electrical contact with each said first external termination of adjacent electronic elements.
Type:
Grant
Filed:
August 7, 2017
Date of Patent:
August 13, 2019
Assignee:
KEMET Electronics Corporation
Inventors:
John E. McConnell, Garry L. Renner, John Bultitude, R. Allen Hill, Galen W. Miller
Abstract: Provided herein is a capacitor, and method for forming a capacitor, comprising an anode, a dielectric over the anode; a cathode over the dielectric; and the cathode comprises core shell particles.
Abstract: An electronic device is described wherein the electronic device comprises a substrate with a first conductive metal layer and a second conductive metal layer. A first microphonic noise reduction structure is in electrical contact with the first conductive metal layer wherein the first microphonic noise reduction layer comprises at least one of the group consisting of a compliant non-metallic layer and a shock absorbing conductor comprising offset mounting tabs with a space there between coupled with at least one stress relieving portion. An electronic component comprising a first external termination of a first polarity and a second external termination of a second polarity is integral to the electronic device and the first microphonic noise reduction structure and the first external termination are adhesively bonded by a transient liquid phase sintering adhesive.
Type:
Grant
Filed:
October 4, 2016
Date of Patent:
July 30, 2019
Assignee:
KEMET Electronics Corporation
Inventors:
John Bultitude, John E. McConnell, Galen W. Miller
Abstract: A capacitor and a method of making a capacitor, is provided with improved reliability performance. The capacitor comprises an anode; a dielectric on the anode; and a cathode on the dielectric wherein the cathode comprises a conductive polymer and a polyanion wherein the polyanion is a copolymer comprising groups A, B and C represented by Formula AxByCz as described herein.
Type:
Grant
Filed:
May 15, 2017
Date of Patent:
July 2, 2019
Assignee:
KEMET Electronics Corporation
Inventors:
Ajaykumar Bunha, Antony P. Chacko, Yaru Shi, Qingping Chen, Philip M. Lessner
Abstract: A method of forming a capacitor is described as is an improved capacitor formed with a one-sided capacitor foil. The method includes: providing a foil comprising a conductive core and a high surface area on each side of a first side and a second side of the core; removing at least a portion of the high surface area on the first side of the core; and forming a conductive layer on the dielectric.
Type:
Grant
Filed:
February 14, 2014
Date of Patent:
June 11, 2019
Assignee:
KEMET Electronics Corporation
Inventors:
Yanming Liu, Jessica P. Love, Brandon Summey
Abstract: An improved capacitor is provided wherein the capacitor has an improved bond between the anode and anode wire. The anode comprises a pressed anode powder comprising a first density region and a second density region wherein the second density region has a higher density than the first density region. An anode wire extends into the second density region wherein the anode wire in the second density region is distorted by compression. This allows for better utilization of the metal powder surface area by allowing a lower bulk press density and lower sinter temperature while still achieving the necessary wire pull strength. In addition, this invention when utilized with deoxidation steps, results in sufficient wire pull strengths not possible otherwise.
Type:
Grant
Filed:
January 16, 2018
Date of Patent:
May 14, 2019
Assignee:
KEMET Electronics Corporation
Inventors:
Christian L. Guerrero, Jeffrey Poltorak, Yuri Freeman, Steve C. Hussey, Chris Stolarski
Abstract: An improved array of capacitors is provided wherein the improvement includes improved electrical properties and improved packing density. The array has an anode foil and a dielectric on a surface of the anode foil. A multiplicity of areas are defined on the dielectric wherein each area is circumvented by an isolation material and the isolation material extends through the dielectric. A conductive cathode layer in each area forms a capacitive couple. At least one substrate vacancy is in the anode foil and the substrate vacancy electrically isolates adjacent anodes of adjacent capacitive couples. A carrier film is attached to the capacitive couples.
Type:
Grant
Filed:
February 27, 2017
Date of Patent:
May 7, 2019
Assignee:
KEMET Electronics Corporation
Inventors:
Brandon Summey, Peter Blais, Yanming Liu
Abstract: An improved process for preparing a conductive polymer dispersion is provided as is an improved method for making capacitors using the conductive polymer. The process includes providing a monomer solution and shearing the monomer solution with a rotor-stator mixing system comprising a perforated stator screen having perforations thereby forming droplets of said monomer. The droplets of monomer are then polymerized during shearing to form the conductive polymer dispersion.
Abstract: An improved capacitor utilizing stacked MLCC's is provided. The capacitor comprising at least one MLCC sandwiched between a first lead and a second lead. Each lead comprises at least one integral lead crimp.
Type:
Grant
Filed:
December 4, 2013
Date of Patent:
March 12, 2019
Assignee:
KEMET Electronics Corporation
Inventors:
John E. McConnell, Alan P. Webster, Lonnie G. Jones, Garry L. Renner, Jeffrey W. Bell
Abstract: Provided is a module comprising a carrier material, comprising a first conductive portion and a second conductive portion, and a multiplicity of electronic components wherein each electronic component comprises a first external termination with at least one first longitudinal edge and a second external termination with at least one second longitudinal edge. A first longitudinal edge of a first electronic component is connected to the first conductive portion by a first interconnect; and a second longitudinal edge of the first electronic component is connected to the second conductive portion by a second interconnect.
Type:
Grant
Filed:
September 13, 2016
Date of Patent:
March 5, 2019
Assignee:
KEMET Electronics Corporation
Inventors:
Galen W. Miller, John E. McConnell, John Bultitude, Garry L. Renner
Abstract: An improved capacitor is provided. The capacitor comprises an anode and a functional dielectric on said anode and a conductive layer on the functional dielectric. An anode wire extends from said anode wherein the anode wire has a thickened dielectric layer thereon.
Abstract: A capacitor, and method for making the capacitor, is provided with improved charging characteristics. The capacitor has an anode, a cathode comprising a conductive polymer layer and a work function modifier layer adjacent the conductive polymer layer and a dielectric layer between the anode and the cathode.
Type:
Grant
Filed:
February 6, 2017
Date of Patent:
February 12, 2019
Assignee:
KEMET Electronics Corporation
Inventors:
Antony P. Chacko, Yaru Shi, Robert Ramsbottom, John T. Kinard, John Joseph Ols
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