DE69608440T2 - METHOD AND DEVICE FOR AN SMD ELEMENT FOR PROTECTING THE ELECTRICAL COMPONENTS AGAINST ESD - Google Patents

METHOD AND DEVICE FOR AN SMD ELEMENT FOR PROTECTING THE ELECTRICAL COMPONENTS AGAINST ESD

Info

Publication number
DE69608440T2
DE69608440T2 DE69608440T DE69608440T DE69608440T2 DE 69608440 T2 DE69608440 T2 DE 69608440T2 DE 69608440 T DE69608440 T DE 69608440T DE 69608440 T DE69608440 T DE 69608440T DE 69608440 T2 DE69608440 T2 DE 69608440T2
Authority
DE
Germany
Prior art keywords
protection device
circuit
protecting
electrical components
components against
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.)
Expired - Fee Related
Application number
DE69608440T
Other languages
German (de)
Other versions
DE69608440D1 (en
Inventor
J Neuhalfen
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.)
Littelfuse Inc
Original Assignee
Littelfuse 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
Priority claimed from US08/474,940 external-priority patent/US6023028A/en
Application filed by Littelfuse Inc filed Critical Littelfuse Inc
Application granted granted Critical
Publication of DE69608440D1 publication Critical patent/DE69608440D1/en
Publication of DE69608440T2 publication Critical patent/DE69608440T2/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
    • H01C7/006—Thin film resistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/06—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base
    • H01C17/075—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base by thin film techniques
    • H01C17/08—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base by thin film techniques by vapour deposition
    • 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
    • H01C7/10—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 voltage responsive, i.e. varistors
    • H01C7/1013—Thin film varistors
    • 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
    • H01C7/10—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 voltage responsive, i.e. varistors
    • H01C7/12—Overvoltage protection resistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Non-Metallic Protective Coatings For Printed Circuits (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Thermistors And Varistors (AREA)
  • Manufacturing Of Printed Circuit Boards (AREA)
  • Semiconductor Integrated Circuits (AREA)

Abstract

The thin film, circuit device is a subminiature overvoltage protection device in a surface mountable configuration for use in printed circuit board or thick film hybrid circuit technology. The surface mountable device (SMD) is designed to protect against electrostatic discharge (ESD) damage to electronic components. The circuit protection device comprises three material subassemblies. The first subassembly generally includes a substrate carrier, electrodes, and terminal pads for connecting the protection device (60) to a PC board. The second subassembly includes a voltage variable polymer material with non-linear characteristics, and the third subassembly includes a cover coat for protecting other elements of the circuit protection device.
DE69608440T 1995-06-07 1996-06-06 METHOD AND DEVICE FOR AN SMD ELEMENT FOR PROTECTING THE ELECTRICAL COMPONENTS AGAINST ESD Expired - Fee Related DE69608440T2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US47450295A 1995-06-07 1995-06-07
US08/474,940 US6023028A (en) 1994-05-27 1995-06-07 Surface-mountable device having a voltage variable polgmeric material for protection against electrostatic damage to electronic components
PCT/US1996/012217 WO1996041356A2 (en) 1995-06-07 1996-06-06 Method and apparatus for a surface-mountable device for protection against electrostatic damage to electronic components

Publications (2)

Publication Number Publication Date
DE69608440D1 DE69608440D1 (en) 2000-06-21
DE69608440T2 true DE69608440T2 (en) 2001-01-04

Family

ID=27044479

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69608440T Expired - Fee Related DE69608440T2 (en) 1995-06-07 1996-06-06 METHOD AND DEVICE FOR AN SMD ELEMENT FOR PROTECTING THE ELECTRICAL COMPONENTS AGAINST ESD

Country Status (8)

Country Link
EP (1) EP0834180B1 (en)
JP (1) JPH11507766A (en)
CN (1) CN1191623A (en)
AT (1) ATE193149T1 (en)
AU (1) AU6597296A (en)
CA (1) CA2223746A1 (en)
DE (1) DE69608440T2 (en)
WO (1) WO1996041356A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0922286A1 (en) * 1996-01-22 1999-06-16 Littelfuse, Inc. Surface mountable electrical device comprising a ptc element
US6023403A (en) * 1996-05-03 2000-02-08 Littlefuse, Inc. Surface mountable electrical device comprising a PTC and fusible element
NL1014319C2 (en) 2000-02-08 2001-08-09 Fci S Hertogenbosch B V Connector comprising an ESD suppressor.
US7258819B2 (en) 2001-10-11 2007-08-21 Littelfuse, Inc. Voltage variable substrate material
US7567416B2 (en) 2005-07-21 2009-07-28 Cooper Technologies Company Transient voltage protection device, material, and manufacturing methods
US7567415B2 (en) * 2006-07-11 2009-07-28 Honeywell International Inc. Separable transient voltage suppression device
CN101950645A (en) * 2010-08-27 2011-01-19 广东风华高新科技股份有限公司 Chip overvoltage protector and manufacturing method thereof
US20120307467A1 (en) * 2011-06-03 2012-12-06 Navarro Luis A Oxygen-Barrier Packaged Surface Mount Device
KR20130117397A (en) * 2012-04-17 2013-10-28 주식회사 이노칩테크놀로지 Circuit protection device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4097834A (en) * 1976-04-12 1978-06-27 Motorola, Inc. Non-linear resistors
FR2513032B1 (en) * 1981-09-14 1985-12-13 Carreras Michelle INTEGRATED PROTECTION AGAINST OVERVOLTAGES OF AN ELECTRONIC CIRCUIT, AND ELECTRONIC CIRCUIT PROTECTED BY THIS DEVICE
US4726991A (en) * 1986-07-10 1988-02-23 Eos Technologies Inc. Electrical overstress protection material and process
US4977357A (en) * 1988-01-11 1990-12-11 Shrier Karen P Overvoltage protection device and material
US5262754A (en) * 1992-09-23 1993-11-16 Electromer Corporation Overvoltage protection element
US5552757A (en) * 1994-05-27 1996-09-03 Littelfuse, Inc. Surface-mounted fuse device

Also Published As

Publication number Publication date
ATE193149T1 (en) 2000-06-15
AU6597296A (en) 1996-12-30
JPH11507766A (en) 1999-07-06
WO1996041356A3 (en) 1997-01-30
CA2223746A1 (en) 1996-12-19
WO1996041356A2 (en) 1996-12-19
EP0834180A2 (en) 1998-04-08
MX9709973A (en) 1998-06-28
EP0834180B1 (en) 2000-05-17
DE69608440D1 (en) 2000-06-21
CN1191623A (en) 1998-08-26

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee