CA2017007A1 - Ptc thermistor and manufacturing method for the same - Google Patents

Ptc thermistor and manufacturing method for the same

Info

Publication number
CA2017007A1
CA2017007A1 CA2017007A CA2017007A CA2017007A1 CA 2017007 A1 CA2017007 A1 CA 2017007A1 CA 2017007 A CA2017007 A CA 2017007A CA 2017007 A CA2017007 A CA 2017007A CA 2017007 A1 CA2017007 A1 CA 2017007A1
Authority
CA
Canada
Prior art keywords
ptc
manufacturing
thermistors
same
ptc thermistor
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
CA2017007A
Other languages
French (fr)
Other versions
CA2017007C (en
Inventor
Makoto Yamada
Setsuya Isshiki
Yukihiko Kurosawa
Masakazu Kuroda
Morio Hayashi
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.)
Fujikura Ltd
Original Assignee
Makoto Yamada
Setsuya Isshiki
Yukihiko Kurosawa
Masakazu Kuroda
Morio Hayashi
Fujikura Ltd.
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
Priority claimed from JP2088462A external-priority patent/JP2898336B2/en
Application filed by Makoto Yamada, Setsuya Isshiki, Yukihiko Kurosawa, Masakazu Kuroda, Morio Hayashi, Fujikura Ltd. filed Critical Makoto Yamada
Publication of CA2017007A1 publication Critical patent/CA2017007A1/en
Application granted granted Critical
Publication of CA2017007C publication Critical patent/CA2017007C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
    • H01C1/1406—Terminals or electrodes formed on resistive elements having positive temperature coefficient
    • 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
    • Y10T29/49082—Resistor making
    • Y10T29/49085—Thermally variable
    • 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
    • Y10T29/49082—Resistor making
    • Y10T29/49101—Applying terminal
    • 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
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49169—Assembling electrical component directly to terminal or elongated conductor
    • 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
    • Y10T29/49787—Obtaining plural composite product pieces from preassembled workpieces

Abstract

PTC (positive temperature coefficient) thermistors of a novel configuration and a method for their manufacture are disclosed. The disclosed PTC thermistors have a PTC element sandwiched between two electrodes for which leads are formed as an extension of each of the two electrodes protruding beyond the edge of the PTC element. Several methods for manufacturing this kind of PTC thermistor are described, whereby undue thermal and physical stress to the PTC
composition are avoided. Additionally, by means of the described manufacturing methods, PTC thermistors having a variety of shapes and configurations can be fabricated.
CA002017007A 1989-05-18 1990-05-17 Ptc thermistor and manufacturing method for the same Expired - Fee Related CA2017007C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP12551689 1989-05-18
JP1-125516 1989-05-18
JP1-143916 1989-06-06
JP14391689 1989-06-06
JP2088462A JP2898336B2 (en) 1989-05-18 1990-04-03 Manufacturing method of PTC thermistor
JP2-88462 1990-04-03

Publications (2)

Publication Number Publication Date
CA2017007A1 true CA2017007A1 (en) 1990-11-18
CA2017007C CA2017007C (en) 1998-12-29

Family

ID=27305814

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002017007A Expired - Fee Related CA2017007C (en) 1989-05-18 1990-05-17 Ptc thermistor and manufacturing method for the same

Country Status (5)

Country Link
US (2) US5212466A (en)
EP (1) EP0398811B1 (en)
AU (1) AU637370B2 (en)
CA (1) CA2017007C (en)
DE (1) DE69028347T2 (en)

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DE4230848C1 (en) * 1992-09-15 1993-12-23 Siemens Matsushita Components Multiple cold conductor for overload protection - has stacked cold conductor discs with U=shaped hoops forming integral disc contacts and contact connections
JP3358070B2 (en) * 1993-11-17 2002-12-16 ローム株式会社 Chip resistor and method of adjusting its resistance
WO1995031816A1 (en) 1994-05-16 1995-11-23 Raychem Corporation Electrical devices comprising a ptc resistive element
CN1113369C (en) * 1994-06-09 2003-07-02 雷伊化学公司 Electrical devices
US5681111A (en) * 1994-06-17 1997-10-28 The Ohio State University Research Foundation High-temperature thermistor device and method
KR19990008423A (en) * 1995-05-10 1999-01-25 데이비드 제이. 크루거 Positive temperature coefficient circuit protection device and manufacturing method thereof
US5663702A (en) * 1995-06-07 1997-09-02 Littelfuse, Inc. PTC electrical device having fuse link in series and metallized ceramic electrodes
US5793276A (en) * 1995-07-25 1998-08-11 Tdk Corporation Organic PTC thermistor
TW309619B (en) 1995-08-15 1997-07-01 Mourns Multifuse Hong Kong Ltd
WO1997006660A2 (en) 1995-08-15 1997-02-27 Bourns, Multifuse (Hong Kong), Ltd. Surface mount conductive polymer devices and method for manufacturing such devices
US5675307A (en) * 1995-08-29 1997-10-07 Therm-O-Disc, Incorporated PTC device with extended thickness
US6023403A (en) * 1996-05-03 2000-02-08 Littlefuse, Inc. Surface mountable electrical device comprising a PTC and fusible element
JP3609551B2 (en) * 1996-08-08 2005-01-12 アスモ株式会社 Thermistor
US5856773A (en) * 1996-11-04 1999-01-05 Raychem Corporation Circuit protection device
KR100507457B1 (en) * 1997-07-07 2005-08-10 마츠시타 덴끼 산교 가부시키가이샤 Ptc thermistor chip and method for manufacturing the same
US6020808A (en) 1997-09-03 2000-02-01 Bourns Multifuse (Hong Kong) Ltd. Multilayer conductive polymer positive temperature coefficent device
US6282072B1 (en) 1998-02-24 2001-08-28 Littelfuse, Inc. Electrical devices having a polymer PTC array
US6242997B1 (en) 1998-03-05 2001-06-05 Bourns, Inc. Conductive polymer device and method of manufacturing same
US6172591B1 (en) 1998-03-05 2001-01-09 Bourns, Inc. Multilayer conductive polymer device and method of manufacturing same
US6236302B1 (en) 1998-03-05 2001-05-22 Bourns, Inc. Multilayer conductive polymer device and method of manufacturing same
WO2000003402A1 (en) * 1998-07-08 2000-01-20 Matsushita Electric Industrial Co., Ltd. Method for manufacturing chip ptc thermister
CN1319235A (en) 1998-09-25 2001-10-24 伯恩斯公司 Two-step method for preparing positive temperature coefficient polymeric material
US6582647B1 (en) 1998-10-01 2003-06-24 Littelfuse, Inc. Method for heat treating PTC devices
US6640420B1 (en) 1999-09-14 2003-11-04 Tyco Electronics Corporation Process for manufacturing a composite polymeric circuit protection device
US6854176B2 (en) * 1999-09-14 2005-02-15 Tyco Electronics Corporation Process for manufacturing a composite polymeric circuit protection device
US6429533B1 (en) 1999-11-23 2002-08-06 Bourns Inc. Conductive polymer device and method of manufacturing same
US6628498B2 (en) 2000-08-28 2003-09-30 Steven J. Whitney Integrated electrostatic discharge and overcurrent device
JP4780689B2 (en) * 2001-03-09 2011-09-28 ローム株式会社 Chip resistor
TW517421B (en) * 2001-05-03 2003-01-11 Inpaq Technology Co Ltd Structure of SMT-type recoverable over-current protection device and its manufacturing method
NL1018807C2 (en) * 2001-08-23 2003-02-25 Bc Components Holding B V PTC resistor in SMD version.
TWI286412B (en) * 2002-07-25 2007-09-01 Polytronics Technology Corp Manufacturing method of over-current protection devices
US7119655B2 (en) * 2004-11-29 2006-10-10 Therm-O-Disc, Incorporated PTC circuit protector having parallel areas of effective resistance
US20090027821A1 (en) * 2007-07-26 2009-01-29 Littelfuse, Inc. Integrated thermistor and metallic element device and method
WO2009040863A1 (en) * 2007-09-19 2009-04-02 Valter Naldi Panel and relative manufacturing system and method
US7847673B2 (en) * 2007-10-18 2010-12-07 Xerox Corporation Duplex-attachment of ceramic disk PTC to substrates
JP5385218B2 (en) * 2009-11-16 2014-01-08 三星エスディアイ株式会社 Usage of secondary battery
KR20180065426A (en) * 2016-12-07 2018-06-18 삼성전자주식회사 Semiconductor storage devices
DE102019204472A1 (en) * 2019-03-29 2020-10-01 Eberspächer Catem Gmbh & Co. Kg Heat-generating element and electrical heating device containing such
CN114871505B (en) * 2022-04-06 2024-02-09 肇庆市安信达电子有限公司 Cutting machine of high-precision PTC thermistor

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US4272471A (en) * 1979-05-21 1981-06-09 Raychem Corporation Method for forming laminates comprising an electrode and a conductive polymer layer
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DE3227907A1 (en) * 1982-07-26 1984-02-02 Siemens AG, 1000 Berlin und 8000 München METHOD FOR PRODUCING CERAMIC PTC RESISTORS WITH CLOSE TOLERATED ELECTRICAL VALUES
DE3583932D1 (en) * 1984-12-18 1991-10-02 Matsushita Electric Ind Co Ltd SELF-REGULATING HEATING ITEM WITH ELECTRODES THAT ARE DIRECTLY CONNECTED TO A PTC LAYER.
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US4937551A (en) * 1989-02-02 1990-06-26 Therm-O-Disc, Incorporated PTC thermal protector device

Also Published As

Publication number Publication date
DE69028347T2 (en) 1997-01-23
EP0398811A3 (en) 1992-05-20
EP0398811B1 (en) 1996-09-04
CA2017007C (en) 1998-12-29
DE69028347D1 (en) 1996-10-10
AU637370B2 (en) 1993-05-27
US5212466A (en) 1993-05-18
EP0398811A2 (en) 1990-11-22
US5351390A (en) 1994-10-04
AU5510090A (en) 1990-11-22

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