With Thermal Fuse Patents (Class 361/275.4)
  • Patent number: 11961678
    Abstract: A film capacitor device includes a film stack with metal strips including adjacent metal strips in 180° opposite orientations in a direction in which the metal strips continuously extend, metal-sprayed electrodes on a pair of end faces of the film stack, and conductors extending continuously in a stacking direction on a pair of end faces (cut surfaces) different from the pair of end faces on which the metal-sprayed electrodes are located.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: April 16, 2024
    Assignee: Kyocera Corporation
    Inventor: Kazuki Imagawa
  • Patent number: 11217390
    Abstract: A composite electronic component includes a capacitor structure including a dielectric layer, and a first internal electrode and a second internal electrode alternately arranged in a first direction, with the dielectric layer interposed therebetween; a fuse structure including a fuse and a fuse body; a common electrode disposed between one surface of the capacitor structure in a second direction, crossing the first direction, and one surface of the fuse structure in the second direction, and connected to the first internal electrode and the fuse; a first external electrode disposed on the other surface of the fuse structure in the second direction, and connected to the fuse; and a second external electrode disposed on the other surface of the capacitor structure in the second direction, and connected to the second internal electrode.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: January 4, 2022
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ki Hong Kim, Jae Sun Won, Jae Joon Yu
  • Patent number: 11139235
    Abstract: A semiconductor device has a semiconductor substrate, a first insulating film formed on a surface of the semiconductor substrate, a first recess formed in the first insulating film, a first barrier film formed on an inner surface of the first insulating film except a top peripheral region of the first trench, a first conductive film formed in the first trench, and a covering film formed on an upper surface and a top peripheral region of the first conductive film and an upper surface of the first barrier film. The first conductive film includes copper.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: October 5, 2021
    Assignee: LAPIS SEMICONDUCTOR CO., LTD.
    Inventor: Kazuhide Abe
  • Patent number: 11013117
    Abstract: An electronic device that includes an intermediate connection layer interposed between a wiring substrate with a pair of land electrodes and an electronic component. The intermediate connection layer has first and second connection electrodes formed on the surface of a base. A fuse part is formed inside the second connection electrode between a main conductor part thereof opposed to a first external electrode of the electronic component and a main conductor part of the first connection electrode opposed to a second external electrode of the electronic component.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: May 18, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Hiroki Sakamoto
  • Patent number: 10937593
    Abstract: A ceramic electronic component includes a stack including ceramic layers and internal electrodes stacked alternately, and external electrodes provided on a surface of the stack and electrically connected to the internal electrodes. The internal electrodes include a melting trigger portion that melts earlier than any other portion. The ceramic layer adjacent to the internal electrode including the melting trigger portion includes a cavity. The cavity is provided at a position at which the cavity overlaps the melting trigger portion at least partially in a stacking direction of the internal electrodes. The cavity is open on a melting trigger portion side. A surface of at least one of the stack and the external electrodes is provided with an identifier that serves as a marker indicating use of the ceramic electronic component with the cavity vertically below the melting trigger portion.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: March 2, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takahiro Hirao, Takashi Ohara, Shu Hamada
  • Patent number: 10151195
    Abstract: The present disclosure provides the printed circuit board assembly suitable for operating downhole at high temperatures. The printed circuit board assembly has a ceramic circuit board with a plurality of chips installed on it. At least one of the chips has an aluminum nitride or a silicon nitride substrate. In some of the chips, aluminum nitride is used as the oxide layer in a Si-on-Insulator configuration. In other chips, integrated circuits are fabricated on a substrate made from aluminum nitride, silicon nitride, silicon carbide, or sapphire.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: December 11, 2018
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, SINOPEC TECH HOUSTON, LLC.
    Inventors: Sheng Zhan, Jinhai Zhao, Herong Zheng, Weiping Xu
  • Patent number: 10102974
    Abstract: Prismatic polymer monolithic capacitor structure including multiple interleaving radiation-cured polymer dielectric layers and metal layers. Method for fabrication of same. The chemical composition of polymer dielectric and the electrode resistivity parameters are chosen to maximize the capacitor self-healing properties and energy density, and to assure the stability of the capacitance and dissipation factor over the operating temperature range. The glass transition temperature of the polymer dielectric is specifically chosen to avoid mechanical relaxation from occurring in the operating temperature range, which prevents high moisture permeation into the structure (which can lead to higher dissipation factor and electrode corrosion). The geometry and shape of the capacitor are appropriately controlled to minimize losses when the capacitor is exposed to pulse and alternating currents.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: October 16, 2018
    Assignee: SIGMA TECHNOLOGIES INT'L., LLC
    Inventor: Angelo Yializis
  • Patent number: 9558886
    Abstract: A laminate body includes a plurality of ceramic layers and capacitor conductors embedded in the laminate body so as to be opposed to each other via one of the ceramic layers. The capacitor conductors are made of an Al-based material, and the capacitor conductors include narrow portions, respectively, which function as fuse elements. The narrow portions have an average width smaller than an average width of portions of the capacitor conductors other than the narrow portions. As a result, the electronic component has an improved capability to protect its function as a capacitor when a short circuit occurs between capacitor conductors.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: January 31, 2017
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Koichi Banno, Shoichiro Suzuki, Taisuke Kanzaki, Akihiro Shiota
  • Patent number: 9472343
    Abstract: A multilayer ceramic capacitor may include: a ceramic body; first and second external electrodes disposed on a mounting surface of the ceramic body; third and fourth external electrodes disposed on a surface of the ceramic body opposing the mounting surface; a first active layer including first and second internal electrodes alternately exposed through the mounting surface of the ceramic body and the surface of the ceramic body opposing the mounting surface and connected to the first and third external electrodes, respectively; a second active layer including third and fourth internal electrodes alternately exposed through the mounting surface of the ceramic body and the surface of the ceramic body opposing the mounting surface and connected to the second and fourth external electrodes, respectively; and an intermittent part disposed on the surface of the ceramic body opposing the mounting surface and connecting the third and fourth external electrodes to each other.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: October 18, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Young Ghyu Ahn, Young Key Kim, Byoung Hwa Lee, Min Cheol Park
  • Patent number: 9305732
    Abstract: A main body of an electronic part is supported by terminals at a position above and separated from a board surface of a printed board. Each of the terminals is composed of a supporting member made of electrically insulating material and a wiring member. Each of the wiring member has an electrode-connected portion electrically connected to an electrode formed on the main body and a land-connected portion electrically connected to a land formed in the printed board. One of the wiring members is composed of a fuse wiring member having a cut-off portion, which is melted down when excess current flows. The wiring member is outwardly expanded in a direction opposite to the main body.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: April 5, 2016
    Assignees: DENSO CORPORATION, Murata Manufacturing Co., Ltd.
    Inventors: Toru Murowaki, Toru Itabashi, Yuki Mikami, Ryoichi Shiraishi, Shigeki Nishiyama
  • Publication number: 20140347780
    Abstract: A film capacitor includes a capacitor element and first and second external electrodes. The capacitor element includes a dielectric film, a first and a second electrode films facing each other across the dielectric film. The first electrode film includes electrode segments arranged in a matrix form, first fuses connecting the electrode segments adjacent to each other in a first direction, and second fuses connecting the electrode segments adjacent to each other in a second direction perpendicular to the first direction. The second fuses are arranged dispersedly in columns constituted by the electrode segments disposed in the second direction.
    Type: Application
    Filed: December 19, 2012
    Publication date: November 27, 2014
    Inventors: Hiroki Takeoka, Hidekazu Matsuoka, Hiroshi Kubota, Yasuhiro Hiraki, Masahito Sano
  • Publication number: 20130148255
    Abstract: A ceramic short circuit resistant capacitor that is bendable and/or shapeable to provide a multiple layer capacitor that is extremely compact and amenable to desirable geometries. The capacitor that exhibits a benign failure mode in which a multitude of discrete failure events result in a gradual loss of capacitance. Each event is a localized event in which localized heating causes an adjacent portion of one or both of the electrodes to vaporize, physically cleaning away electrode material from the failure site. A first metal electrode, a second metal electrode, and a ceramic dielectric layer between the electrodes are thin enough to be formed in a serpentine-arrangement with gaps between the first electrode and the second electrode that allow venting of vaporized electrode material in the event of a benign failure.
    Type: Application
    Filed: January 29, 2013
    Publication date: June 13, 2013
    Applicant: DELPHI TECHNOLOGIES, INC.
    Inventor: DELPHI TECHNOLOGIES, INC.
  • Patent number: 8395879
    Abstract: A bundled capacitor with a plurality of individual capacitors is described herein. Each bundled capacitor provides an individual capacitance value. The bundled capacitor can include a housing, a cap connected to the housing, a central common terminal, a plurality of auxiliary terminals, an interrupter, an insulating spider, an insulated collective connection, a thermal fuse, a frangible electrical connection, an insulating layer, a resin disposed around the capacitors, and an expansion chamber formed between the resin and the interrupter, enabling the cap to deform when one of the capacitors overheats in the bundled capacitor.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: March 12, 2013
    Assignee: Direct Brand, Ltd.
    Inventors: Malcolm Gorst, Ronald E. Loving
  • Patent number: 8310802
    Abstract: A metallization film capacitor that achieves both high heat resistance and high withstand voltage at the same time. A metal-deposited electrode is formed on a PEN film in each of a pair of metalized films. These metalized films are wound such that the metal-deposited electrodes face each other via the dielectric film in between. A metalized contact electrode is formed on both end faces of these wound metalized films to configure the metallization film capacitor. A divisional electrode is provided on the metal-deposited electrode. In addition, a fuse is coupled to this divisional electrode for providing a self-maintaining function. Pass rate a/b of a deposition pattern is set to 4.0 or smaller, where ‘a’ is the fuse width, and ‘b’ is the length of the divisional electrode in a lengthwise direction of the metalized films.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: November 13, 2012
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Fujii, Takuya Kyouda, Hiroki Takeoka
  • Publication number: 20110181998
    Abstract: There is provided a deposited film for a film capacitor, which comprises: a thermally sprayed metal contact part formed at one end of a dielectric in a width direction of the dielectric, and a margin part having no deposited metal formed at the other end of the dielectric in the width direction of the dielectric; a split electrode in a rectangular shape formed by forming a T-shaped window margin, from the margin part to a predetermined position within a width range of the deposit film, in the width direction of the deposited film; and a fuse part formed between the split electrodes in the width direction of the deposited film, wherein adjacent fuse parts in the length direction of the deposited film are formed in a stepped layout in the width direction of the deposited film.
    Type: Application
    Filed: March 15, 2010
    Publication date: July 28, 2011
    Applicant: NUINTEK CO., LTD.
    Inventors: Chang-Hoon YANG, Dae-Jin PARK, Yong-Won JUN
  • Publication number: 20100226065
    Abstract: A metallization film capacitor that achieves both high heat resistance and high withstand voltage at the same time. A metal-deposited electrode is formed on a PEN film in each of a pair of metalized films. These metalized films are wound such that the metal-deposited electrodes face each other via the dielectric film in between. A metalized contact electrode is formed on both end faces of these wound metalized films to configure the metallization film capacitor. A divisional electrode is provided on the metal-deposited electrode. In addition, a fuse is coupled to this divisional electrode for providing a self-maintaining function. Pass rate a/b of a deposition pattern is set to 4.0 or smaller, where ‘a’ is the fuse width, and ‘b’ is the length of the divisional electrode in a lengthwise direction of the metalized films.
    Type: Application
    Filed: August 27, 2007
    Publication date: September 9, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Hiroshi Fujii, Takuya Kyouda, Hiroki Takeoka
  • Patent number: 7471498
    Abstract: A capacitor having a large current carrying capacity includes a hollow core formed by a non-conducting tubular section, and a capacitor winding wrapped around the tubular section. A thermal cutoff device is disposed within the hollow core. The thermal cutoff device is configured to sense a predetermined temperature level within the hollow core and disable the current carrying capacity of the capacitor. The thermal cutoff device is disposed at a geometric center of the capacitor winding, which is also the hot spot of the capacitor winding. The thermal cutoff device includes first and second conductors electrically connected to each other with a predetermined solder alloy. The first conductor includes a cross-sectional portion that is attached to the second conductor. The cross-sectional portion is subjected to a springing force in a lateral direction away from the second conductor.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: December 30, 2008
    Assignee: Electronic Concepts, Inc.
    Inventors: Bernard Lavene, David Curto, Alan Schach
  • Patent number: 7295086
    Abstract: The invention includes an electromagnetic filter for a feedthrough conductor, and a method of making such a filter. At least two dielectric components are supported from a first side of a substrate, such as a housing or a printed circuit board. At least one of the dielectric components is associated with a failsafe link.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: November 13, 2007
    Assignee: Spectrum Control Inc.
    Inventors: Joseph V. Van Hoyweghen, III, Edward G. Sveda, Jr., Jeffrey D. Chereson
  • Patent number: 6259348
    Abstract: A surface mounting type electronic component such as a solid electrolytic capacitor is provided which comprises an electronic element, a safety fuse wire having a base end electrically connected to the electronic element, and a resin package enclosing the electronic element together with the fuse wire. The fuse wire also has a tip end which is exposed at a face of the resin package, and the face of the resin package is formed with a layer-like terminal in electrical connection with the tip end of the fuse wire.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: July 10, 2001
    Assignee: Rohm Co., Ltd.
    Inventor: Chojiro Kuriyama
  • Patent number: 6251503
    Abstract: The present invention relates to a film condenser and a metalized film for manufacturing the same. The metalized film comprises a base film formed from an insulating material, and a metal coating layer formed on the base film. A plurality of uncoated portions are formed as area partition margins in the metal coating layer so as to respectively form, in the metal coating layer, a plurality of electrode regions, a plurality of fuse connecting regions surrounded by two or more of the electrode regions, and a plurality of fuse portions. The fuse portions electrically connect each one of the fuse connecting regions with the electrode regions surrounding the one of the fuse connecting regions.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: June 26, 2001
    Assignee: Mitsubishi Shindoh Co., Ltd.
    Inventor: Mitsuru Momose
  • Patent number: 6188566
    Abstract: A compact solid electrolytic capacitor includes a capacitor element having a positive electrode and a negative electrode which are respectively connected electrically to a first lead and a second lead and a casing of a resin material surrounding the capacitor element. A low melting-point metal layer serving as a fuse, which will quickly melt under an abnormal condition, is inserted between and electrically connects the capacitor element and the second lead and an arc-extinguishing material capable of absorbing the melted metal of the low melting-point metallic material fills a throughhole through the second lead where the latter contacts the low melting-point metal layer. The low melting-point metal layer may be in the form of a flat ribbon of thickness only about 50-100 &mgr;m.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: February 13, 2001
    Assignee: Rohm Co., Ltd.
    Inventor: Makoto Aoyama