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GB1130108A - Improvements in and relating to electric resistors - Google Patents

Improvements in and relating to electric resistors

Info

Publication number
GB1130108A
GB1130108A GB22771/67A GB2277167A GB1130108A GB 1130108 A GB1130108 A GB 1130108A GB 22771/67 A GB22771/67 A GB 22771/67A GB 2277167 A GB2277167 A GB 2277167A GB 1130108 A GB1130108 A GB 1130108A
Authority
GB
United Kingdom
Prior art keywords
silver
electrodes
paint
oxides
oxidizing atmosphere
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
Application number
GB22771/67A
Inventor
Michio Matsuoka
Takeshi Masuyama
Yoshioiida
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1130108A publication Critical patent/GB1130108A/en
Expired 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
    • H01C7/10—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
    • H01C7/105—Varistor cores
    • H01C7/108—Metal oxide
    • H01C7/112—ZnO type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/28—Apparatus or processes specially adapted for manufacturing resistors adapted for applying terminals
    • H01C17/281—Apparatus or processes specially adapted for manufacturing resistors adapted for applying terminals by thick film techniques
    • H01C17/283—Precursor compositions therefor, e.g. pastes, inks, glass frits
    • H01C17/285—Precursor compositions therefor, e.g. pastes, inks, glass frits applied to zinc or cadmium oxide resistors
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Non-Adjustable Resistors (AREA)

Abstract

1,130,108. Non-linear resistors. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 16 May, 1967 [16 May, 1966], No. 22771/67. Heading H1K. A non-linear resistor comprises a sintered body including ZnO, with silver-containing electrodes applied non-ohmically thereto. The body may-contain, as minor constituents, oxides of Fe, A1, Bi, Mg, Ca, Ni, Co, Nb, Ta, Zr, W, Cd and Cr, and the electrodes -may contain minority amounts of oxides of Pb, Si, B, Bi, Cd and Cu. Preferred compositions are specified. The starting materials for the body -may be preliminarily calcined at 700-1000‹ C., then crushed and mixed with water or polyvinyl alcohol as a binder. The mixture is dried and pressed in a wet mill, and is then sintered at 1250-1450‹ C. in air. Alternatively a non- oxidizing atmosphere may be used. After cooling and lapping, silver paint electrodes are applied, e.g. by spraying, screen printing, brushing, vacuum evaporation or chemical deposition, and are fired at 100-850‹ C. in an oxidizing atmosphere. The silver paint may have been prepared by mixing powder with an organic resin in an organic solvent. 'Examples are given. Silver carbonate or oxide, which convert to metallic silver on firing, may be used in the paint. Leads are fixed to the electrodes by soldering or by using silver paint adhesive. The resistor is finally embedded in resin.
GB22771/67A 1966-05-16 1967-05-16 Improvements in and relating to electric resistors Expired GB1130108A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP41031594A JPS521113B1 (en) 1966-05-16 1966-05-16

Publications (1)

Publication Number Publication Date
GB1130108A true GB1130108A (en) 1968-10-09

Family

ID=12335503

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22771/67A Expired GB1130108A (en) 1966-05-16 1967-05-16 Improvements in and relating to electric resistors

Country Status (6)

Country Link
US (1) US3496512A (en)
JP (1) JPS521113B1 (en)
DE (1) DE1665135B1 (en)
FR (1) FR1565333A (en)
GB (1) GB1130108A (en)
NL (1) NL141685B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5018960B1 (en) * 1969-09-01 1975-07-03
JPS5018959B1 (en) * 1968-11-08 1975-07-03
DE2848454A1 (en) * 1978-11-08 1980-05-14 Siemens Ag Voltage-dependent resistor for overvoltage protection - has metal oxide disc located between springs and insulating material with silver-plated contacts on each side

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1356844A (en) * 1971-05-28 1974-06-19 Knyazhev A A Avdeeva T I Shapi Manufacture of electric contacts
JPS52556B2 (en) * 1972-02-16 1977-01-08
US3856567A (en) * 1972-08-04 1974-12-24 J Pitha Electrode for porous ceramic and method of making same
NL179524C (en) * 1972-12-29 1986-09-16 Matsushita Electric Ind Co Ltd METHOD FOR PRODUCING A VOLTAGE DEPENDENT RESISTOR
US4073971A (en) * 1973-07-31 1978-02-14 Nobuo Yasujima Process of manufacturing terminals of a heat-proof metallic thin film resistor
US3903494A (en) * 1973-09-27 1975-09-02 Gen Electric Metal oxide varistor with coating that enhances contact adhesion
US3857174A (en) * 1973-09-27 1974-12-31 Gen Electric Method of making varistor with passivating coating
JPS5623281B2 (en) * 1974-02-28 1981-05-30
JPS5261212A (en) * 1975-11-13 1977-05-20 Toyota Motor Co Ltd Electric detonator
US4103619A (en) * 1976-11-08 1978-08-01 Nasa Electroexplosive device
DE2820118C2 (en) * 1977-06-23 1985-04-11 Kombinat Veb Keramische Werke Hermsdorf, Ddr 6530 Hermsdorf Oxide varistor and process for its manufacture
US4172922A (en) * 1977-08-18 1979-10-30 Trw, Inc. Resistor material, resistor made therefrom and method of making the same
US4146677A (en) * 1977-08-18 1979-03-27 Trw Inc. Resistor material, resistor made therefrom and method of making the same
US5153554A (en) * 1990-05-08 1992-10-06 Raychem Corp. Low voltage varistor array
US5583734A (en) * 1994-11-10 1996-12-10 Raychem Corporation Surge arrester with overvoltage sensitive grounding switch
US5569495A (en) * 1995-05-16 1996-10-29 Raychem Corporation Method of making varistor chip with etching to remove damaged surfaces
DE19634498C2 (en) * 1996-08-26 1999-01-28 Siemens Matsushita Components Electro-ceramic component and method for its production
JPH11186006A (en) * 1997-12-22 1999-07-09 Toshiba Corp Nonlinear resistor
US9347137B2 (en) * 2006-09-11 2016-05-24 Ihi Corporation Method of manufacturing electrode for electrical-discharge surface treatment, and electrode for electrical-discharge surface treatment
DE102013112881A1 (en) 2013-11-21 2015-05-21 Osram Opto Semiconductors Gmbh Optoelectronic semiconductor chip

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA479580A (en) * 1951-12-18 W. Davis Gustoff Conductive devices
US1822742A (en) * 1927-06-13 1931-09-08 Gen Electric Discharge device and resistance material
US2027277A (en) * 1929-08-16 1936-01-07 Habann Erich Contact device
GB618966A (en) * 1946-06-14 1949-03-02 Standard Telephones Cables Ltd Improvements in or relating to electric thermally sensitive resistance elements
US2887632A (en) * 1952-04-16 1959-05-19 Timefax Corp Zinc oxide semiconductors and methods of manufacture
US2786819A (en) * 1955-11-17 1957-03-26 Gen Motors Corp Resistor
US2977558A (en) * 1958-06-19 1961-03-28 Cutler Hammer Inc Thermal responsive resistance devices
US3037942A (en) * 1959-11-02 1962-06-05 Gen Electric Positive temperature coefficient of resistivity resistor
GB874257A (en) * 1960-03-02 1961-08-02 Controllix Corp Improvements in or relating to circuit-breaker actuating mechanisms
US3075122A (en) * 1960-05-02 1963-01-22 Westinghouse Electric Corp Electroluminescent system, electrically non-linear element and method
US3219480A (en) * 1961-06-29 1965-11-23 Gen Electric Method for making thermistors and article
US3264229A (en) * 1964-02-10 1966-08-02 American Zinc Lead & Smelting Method of making conductive zinc oxide

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5018959B1 (en) * 1968-11-08 1975-07-03
JPS5018960B1 (en) * 1969-09-01 1975-07-03
DE2848454A1 (en) * 1978-11-08 1980-05-14 Siemens Ag Voltage-dependent resistor for overvoltage protection - has metal oxide disc located between springs and insulating material with silver-plated contacts on each side

Also Published As

Publication number Publication date
DE1665135B1 (en) 1972-05-25
US3496512A (en) 1970-02-17
NL6706772A (en) 1967-11-17
JPS521113B1 (en) 1977-01-12
NL141685B (en) 1974-03-15
FR1565333A (en) 1969-05-02

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