ES351239A1 - Un dispositivo de elemento microcalefactor. - Google Patents

Un dispositivo de elemento microcalefactor.

Info

Publication number
ES351239A1
ES351239A1 ES351239A ES351239A ES351239A1 ES 351239 A1 ES351239 A1 ES 351239A1 ES 351239 A ES351239 A ES 351239A ES 351239 A ES351239 A ES 351239A ES 351239 A1 ES351239 A1 ES 351239A1
Authority
ES
Spain
Prior art keywords
crystals
substrate
silicon carbide
silicon
terminals
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
ES351239A
Other languages
English (en)
Spanish (es)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES351239A1 publication Critical patent/ES351239A1/es
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02Main electrodes
    • H01J1/13Solid thermionic cathodes
    • H01J1/20Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/22Heaters
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C7/00Non-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
    • H01C7/02Non-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
    • H01C7/022Non-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 mainly consisting of non-metallic substances
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02Main electrodes
    • H01J1/13Solid thermionic cathodes
    • H01J1/15Cathodes heated directly by an electric current

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Solid Thermionic Cathode (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
ES351239A 1967-03-07 1968-03-05 Un dispositivo de elemento microcalefactor. Expired ES351239A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6703548A NL6703548A (de) 1967-03-07 1967-03-07

Publications (1)

Publication Number Publication Date
ES351239A1 true ES351239A1 (es) 1969-06-01

Family

ID=19799479

Family Applications (1)

Application Number Title Priority Date Filing Date
ES351239A Expired ES351239A1 (es) 1967-03-07 1968-03-05 Un dispositivo de elemento microcalefactor.

Country Status (7)

Country Link
US (1) US3495120A (de)
CH (1) CH469351A (de)
DE (1) DE1639354A1 (de)
ES (1) ES351239A1 (de)
FR (1) FR1558677A (de)
GB (1) GB1222887A (de)
NL (1) NL6703548A (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0389228B1 (de) * 1989-03-24 1995-01-25 Mitsubishi Denki Kabushiki Kaisha Hochtemperaturbauteil
NL9100327A (nl) * 1991-02-25 1992-09-16 Philips Nv Kathode.
GB2404128B (en) * 2003-07-16 2005-08-24 Kanthal Ltd Silicon carbide furnace heating elements
DE102017101946A1 (de) * 2017-02-01 2018-08-02 Epcos Ag PTC-Heizer mit verringertem Einschaltstrom
US20200066474A1 (en) * 2018-08-22 2020-02-27 Modern Electron, LLC Cathodes with conformal cathode surfaces, vacuum electronic devices with cathodes with conformal cathode surfaces, and methods of manufacturing the same
CN111243917B (zh) * 2020-01-19 2021-12-07 中国科学院电子学研究所 一种阴极热子组件及其制备方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1814759A (en) * 1926-02-10 1931-07-14 Frederick S Mccullough Cathode structure
US3380936A (en) * 1965-10-18 1968-04-30 Matsushita Electric Industrial Co Ltd Silicon carbide varistors

Also Published As

Publication number Publication date
NL6703548A (de) 1968-09-09
CH469351A (de) 1969-02-28
DE1639354A1 (de) 1970-06-04
GB1222887A (en) 1971-02-17
US3495120A (en) 1970-02-10
FR1558677A (de) 1969-02-28

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