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GB909767A - Semi-conductive element - Google Patents

Semi-conductive element

Info

Publication number
GB909767A
GB909767A GB2167/61A GB216761A GB909767A GB 909767 A GB909767 A GB 909767A GB 2167/61 A GB2167/61 A GB 2167/61A GB 216761 A GB216761 A GB 216761A GB 909767 A GB909767 A GB 909767A
Authority
GB
United Kingdom
Prior art keywords
semi
manganese dioxide
wires
chromium
iron
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
GB2167/61A
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.)
Specialties Development Corp
Original Assignee
Specialties Development Corp
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 Specialties Development Corp filed Critical Specialties Development Corp
Publication of GB909767A publication Critical patent/GB909767A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
    • 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
    • H01C7/04—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 negative temperature coefficient
    • 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
    • H01C7/04—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 negative temperature coefficient
    • H01C7/042—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 negative temperature coefficient mainly consisting of inorganic non-metallic substances
    • H01C7/043—Oxides or oxidic compounds

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

909,767. Semi-conductor devices. SPECIALTIES DEVELOPMENT CORPORATION. Jan. 19, 1961 [Feb. 1, 1960], No. 2167/61. Class 37. A thermistor which, in the construction shown is in the form of a cylindrical head 10 consists of between 50-80% by weight of manganese dioxide and the balance cobaltic oxide and has embedded in it a pair of spaced terminals 11 which are formed of an alloy consisting of between 6 and 17% by weight of iron, 11 and 18% of chromium and the balance nickel at a minimum of 30%. The combination of the semi-conductor material with the lead wires enables a relatively voltage-insensitive arrangement to be made without using platinum leads. In a specific example the body consists of admixed fine particles of 75% manganese dioxide, and 25% cobaltic oxide and wires of 75% nickel, 15% chromium and 10% iron. For comparison purposes a body of 90% manganese dioxide and 10% cupric oxide with platinum leads is also described as is a similar body with the same wires as those used in the device of the invention.
GB2167/61A 1960-02-01 1961-01-19 Semi-conductive element Expired GB909767A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5952A US3016506A (en) 1960-02-01 1960-02-01 Semi-conductive element

Publications (1)

Publication Number Publication Date
GB909767A true GB909767A (en) 1962-11-07

Family

ID=21718529

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2167/61A Expired GB909767A (en) 1960-02-01 1961-01-19 Semi-conductive element

Country Status (2)

Country Link
US (1) US3016506A (en)
GB (1) GB909767A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3186228A (en) * 1960-06-30 1965-06-01 Gen Electric Time-temperature integrator
US3221393A (en) * 1961-09-05 1965-12-07 Victory Engineering Corp Method of making bead type thermistors
DE1439304B2 (en) * 1963-10-31 1972-02-24 Siemens AG, 1000 Berlin u. 8000 München SEMICONDUCTOR COMPONENT
US3513432A (en) * 1969-02-10 1970-05-19 Continental Sensing Inc Shielded thermoelectric transducer/conductor construction
NL8103116A (en) * 1981-06-29 1983-01-17 Philips Nv RESISTANCE WITH POSITIVE TEMPERATURE COEFFICIENT.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2407288A (en) * 1941-04-25 1946-09-10 Bell Telephone Labor Inc Resistor device
US2329511A (en) * 1942-09-19 1943-09-14 Bell Telephone Labor Inc Method of making resistors
US2414793A (en) * 1945-06-29 1947-01-28 Bell Telephone Labor Inc Method of making resistors
US2720573A (en) * 1951-06-27 1955-10-11 Dick O R Lundqvist Thermistor disks
US2871197A (en) * 1954-10-26 1959-01-27 Specialties Dev Corp Resistance material for fire detector element
US2936434A (en) * 1956-10-05 1960-05-10 Mc Graw Edison Co Fire detector cable

Also Published As

Publication number Publication date
US3016506A (en) 1962-01-09

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