CA2087794A1 - Circuit elements dependent on core inductance and fabrication thereof - Google Patents

Circuit elements dependent on core inductance and fabrication thereof

Info

Publication number
CA2087794A1
CA2087794A1 CA2087794A CA2087794A CA2087794A1 CA 2087794 A1 CA2087794 A1 CA 2087794A1 CA 2087794 A CA2087794 A CA 2087794A CA 2087794 A CA2087794 A CA 2087794A CA 2087794 A1 CA2087794 A1 CA 2087794A1
Authority
CA
Canada
Prior art keywords
circuit elements
windings
fabrication
joinder
core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2087794A
Other languages
French (fr)
Other versions
CA2087794C (en
Inventor
Robert Leonard Billings
Donald William Dahringer
Alan Michael Lyons
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
American Telephone and Telegraph Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Publication of CA2087794A1 publication Critical patent/CA2087794A1/en
Application granted granted Critical
Publication of CA2087794C publication Critical patent/CA2087794C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/041—Printed circuit coils
    • H01F41/046—Printed circuit coils structurally combined with ferromagnetic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/0006—Printed inductances
    • H01F17/0033—Printed inductances with the coil helically wound around a magnetic core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49073—Electromagnet, transformer or inductor by assembling coil and core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49789—Obtaining plural product pieces from unitary workpiece

Abstract

Magnetic circuit elements, e.g. for inclusion on circuit boards including one or more windings about a toroidal core are produced by joinder of mating sheets, one or both recessed to hold the core, and each containing partial windings. Joinder is by use of an anisotropically conducting adhesive layer. The layer is applied as an uncured thermosetting adhesive containing spherical conducting particles of suchsize and distribution as to statistically result in electrical completion of windings while avoiding turn-to-turn shorting.
CA002087794A 1992-02-14 1993-01-21 Circuit elements dependent on core inductance and fabrication thereof Expired - Fee Related CA2087794C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US835,793 1992-02-14
US07/835,793 US5257000A (en) 1992-02-14 1992-02-14 Circuit elements dependent on core inductance and fabrication thereof

Publications (2)

Publication Number Publication Date
CA2087794A1 true CA2087794A1 (en) 1993-08-15
CA2087794C CA2087794C (en) 1998-09-29

Family

ID=25270475

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002087794A Expired - Fee Related CA2087794C (en) 1992-02-14 1993-01-21 Circuit elements dependent on core inductance and fabrication thereof

Country Status (8)

Country Link
US (1) US5257000A (en)
EP (1) EP0555994B1 (en)
JP (1) JPH0613255A (en)
KR (1) KR930018769A (en)
CA (1) CA2087794C (en)
DE (1) DE69310781T2 (en)
ES (1) ES2101941T3 (en)
HK (1) HK1002719A1 (en)

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US5525941A (en) * 1993-04-01 1996-06-11 General Electric Company Magnetic and electromagnetic circuit components having embedded magnetic material in a high density interconnect structure
US5541567A (en) * 1994-10-17 1996-07-30 International Business Machines Corporation Coaxial vias in an electronic substrate
US5781091A (en) * 1995-07-24 1998-07-14 Autosplice Systems Inc. Electronic inductive device and method for manufacturing
JP4030028B2 (en) * 1996-12-26 2008-01-09 シチズン電子株式会社 SMD type circuit device and manufacturing method thereof
EP0851439B1 (en) * 1996-12-26 2002-03-06 Citizen Electronics Co., Ltd. Modular surface mount circuit device and a manufacturing method thereof
DE19723068C1 (en) * 1997-06-02 1999-05-12 Vacuumschmelze Gmbh Inductive component
DE10002377A1 (en) * 2000-01-20 2001-08-02 Infineon Technologies Ag Coil and coil system for integration into a microelectronic circuit and microelectronic circuit
US6531945B1 (en) * 2000-03-10 2003-03-11 Micron Technology, Inc. Integrated circuit inductor with a magnetic core
AU2001263348A1 (en) * 2000-05-19 2001-12-03 Philip A. Harding Slot core transformers
US6820321B2 (en) * 2000-09-22 2004-11-23 M-Flex Multi-Fineline Electronix, Inc. Method of making electronic transformer/inductor devices
US6792667B2 (en) * 2001-10-23 2004-09-21 Di/Dt, Inc. Fully automatic process for magnetic circuit assembly
US7135952B2 (en) * 2002-09-16 2006-11-14 Multi-Fineline Electronix, Inc. Electronic transformer/inductor devices and methods for making same
US7306008B2 (en) * 2004-04-05 2007-12-11 Tornay Paul G Water leak detection and prevention systems and methods
CA2589485A1 (en) * 2004-12-07 2006-06-15 Ronald W. Whittaker Miniature circuitry and inductive components and methods for manufacturing same
US7436282B2 (en) * 2004-12-07 2008-10-14 Multi-Fineline Electronix, Inc. Miniature circuitry and inductive components and methods for manufacturing same
US7645941B2 (en) 2006-05-02 2010-01-12 Multi-Fineline Electronix, Inc. Shielded flexible circuits and methods for manufacturing same
US8310332B2 (en) * 2008-10-08 2012-11-13 Cooper Technologies Company High current amorphous powder core inductor
US8466764B2 (en) 2006-09-12 2013-06-18 Cooper Technologies Company Low profile layered coil and cores for magnetic components
US8378777B2 (en) * 2008-07-29 2013-02-19 Cooper Technologies Company Magnetic electrical device
US9589716B2 (en) 2006-09-12 2017-03-07 Cooper Technologies Company Laminated magnetic component and manufacture with soft magnetic powder polymer composite sheets
US7791445B2 (en) * 2006-09-12 2010-09-07 Cooper Technologies Company Low profile layered coil and cores for magnetic components
US8941457B2 (en) * 2006-09-12 2015-01-27 Cooper Technologies Company Miniature power inductor and methods of manufacture
US8860543B2 (en) * 2006-11-14 2014-10-14 Pulse Electronics, Inc. Wire-less inductive devices and methods
US7489226B1 (en) * 2008-05-09 2009-02-10 Raytheon Company Fabrication method and structure for embedded core transformers
US8279037B2 (en) * 2008-07-11 2012-10-02 Cooper Technologies Company Magnetic components and methods of manufacturing the same
US8659379B2 (en) 2008-07-11 2014-02-25 Cooper Technologies Company Magnetic components and methods of manufacturing the same
US9558881B2 (en) 2008-07-11 2017-01-31 Cooper Technologies Company High current power inductor
US9859043B2 (en) 2008-07-11 2018-01-02 Cooper Technologies Company Magnetic components and methods of manufacturing the same
US7982572B2 (en) * 2008-07-17 2011-07-19 Pulse Engineering, Inc. Substrate inductive devices and methods
US9664711B2 (en) 2009-07-31 2017-05-30 Pulse Electronics, Inc. Current sensing devices and methods
US9823274B2 (en) 2009-07-31 2017-11-21 Pulse Electronics, Inc. Current sensing inductive devices
US8591262B2 (en) 2010-09-03 2013-11-26 Pulse Electronics, Inc. Substrate inductive devices and methods
KR101827047B1 (en) 2012-03-02 2018-02-07 펄스 일렉트로닉스, 인크. Deposition antenna apparatus and methods
US9304149B2 (en) 2012-05-31 2016-04-05 Pulse Electronics, Inc. Current sensing devices and methods
US20140125446A1 (en) 2012-11-07 2014-05-08 Pulse Electronics, Inc. Substrate inductive device methods and apparatus
US10020561B2 (en) 2013-09-19 2018-07-10 Pulse Finland Oy Deposited three-dimensional antenna apparatus and methods
US10141107B2 (en) * 2013-10-10 2018-11-27 Analog Devices, Inc. Miniature planar transformer
WO2015125028A2 (en) 2014-02-12 2015-08-27 Pulse Finland Oy Methods and apparatus for conductive element deposition and formation
US9959967B2 (en) 2014-05-15 2018-05-01 Analog Devices, Inc. Magnetic devices and methods for manufacture using flex circuits
US9833802B2 (en) 2014-06-27 2017-12-05 Pulse Finland Oy Methods and apparatus for conductive element deposition and formation
GB2535761B (en) * 2015-02-26 2019-08-07 Murata Manufacturing Co An embedded magnetic component device
GB2535763B (en) * 2015-02-26 2018-08-01 Murata Manufacturing Co An embedded magnetic component device
US10763028B2 (en) 2015-04-10 2020-09-01 Delta Electronics, Inc. Magnetic component and magnetic core of the same
TWI557759B (en) * 2015-04-10 2016-11-11 台達電子工業股份有限公司 Integrated inductor and integrated inductor magnetic core of the same
FR3106456A1 (en) * 2020-01-16 2021-07-23 Commissariat A L'energie Atomique Et Aux Energies Alternatives Electromagnetic energy conversion device
US20220093314A1 (en) * 2020-09-18 2022-03-24 Intel Corporation Package embedded magnetic power transformers for smps

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FR58522E (en) * 1948-03-18 1954-01-27 J M Dard & Cie Ets Manufacturing process of magnetic circuits
US3881244A (en) * 1972-06-02 1975-05-06 Texas Instruments Inc Method of making a solid state inductor
US3765082A (en) * 1972-09-20 1973-10-16 San Fernando Electric Mfg Method of making an inductor chip
US4117588A (en) * 1977-01-24 1978-10-03 The United States Of America As Represented By The Secretary Of The Navy Method of manufacturing three dimensional integrated circuits
DE3165884D1 (en) * 1980-02-01 1984-10-18 Hasler Ag Pulse transformer and its use as isolation transformer
US4536733A (en) * 1982-09-30 1985-08-20 Sperry Corporation High frequency inverter transformer for power supplies
US4755783A (en) * 1986-11-18 1988-07-05 Rogers Corporation Inductive devices for printed wiring boards
JPS63271911A (en) * 1987-04-28 1988-11-09 Toko Inc Manufacture of laminated electronic component
JPH01302809A (en) * 1988-05-31 1989-12-06 Tokyo Electric Co Ltd Electromagnetic device for board
US4975671A (en) * 1988-08-31 1990-12-04 Apple Computer, Inc. Transformer for use with surface mounting technology
JP2700184B2 (en) * 1989-06-02 1998-01-19 清水建設株式会社 Ground permeability test equipment
US5055816A (en) * 1989-06-26 1991-10-08 Motorola, Inc. Method for fabricating an electronic device
JPH03219606A (en) * 1990-01-24 1991-09-27 Toko Inc Manufacture of laminated inductor

Also Published As

Publication number Publication date
HK1002719A1 (en) 1998-09-11
ES2101941T3 (en) 1997-07-16
CA2087794C (en) 1998-09-29
EP0555994A1 (en) 1993-08-18
DE69310781T2 (en) 1997-09-04
EP0555994B1 (en) 1997-05-21
DE69310781D1 (en) 1997-06-26
JPH0613255A (en) 1994-01-21
US5257000A (en) 1993-10-26
KR930018769A (en) 1993-09-22

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