FR2413766A1 - Varistor made from several metal oxide(s) - esp. using substrate made of semiconducting zinc oxide and covered with other oxide(s) - Google Patents

Varistor made from several metal oxide(s) - esp. using substrate made of semiconducting zinc oxide and covered with other oxide(s)

Info

Publication number
FR2413766A1
FR2413766A1 FR7832823A FR7832823A FR2413766A1 FR 2413766 A1 FR2413766 A1 FR 2413766A1 FR 7832823 A FR7832823 A FR 7832823A FR 7832823 A FR7832823 A FR 7832823A FR 2413766 A1 FR2413766 A1 FR 2413766A1
Authority
FR
France
Prior art keywords
oxide
varistor
metal oxide
esp
covered
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
FR7832823A
Other languages
French (fr)
Other versions
FR2413766B3 (en
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.)
HERMSDORF KERAMIK VEB
Original Assignee
HERMSDORF KERAMIK VEB
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 HERMSDORF KERAMIK VEB filed Critical HERMSDORF KERAMIK VEB
Publication of FR2413766A1 publication Critical patent/FR2413766A1/en
Application granted granted Critical
Publication of FR2413766B3 publication Critical patent/FR2413766B3/fr
Granted 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

Landscapes

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

Abstract

The varistor is formed by two separate macro-elements, viz. (a) a base material or ground phase, which is a semiconducting metal oxide; and (b) a metal oxide-, or mixed oxide-phase, producing a phase boundary region (a,b) with a specific concn. profile. Several macro-elements (a,b) may be combined in horizontal and/or vertical stacks. The structure of the macro-elements may be mono- or poly-crystalline, or amorphous; and the pref. material (a) is doped zinc oxide. The electrical properties of the varistor can be accurately adjusted even when using working voltages below 15V; and the varistor is simple to mfr.
FR7832823A 1978-01-03 1978-11-21 Varistor made from several metal oxide(s) - esp. using substrate made of semiconducting zinc oxide and covered with other oxide(s) Granted FR2413766A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD20307578A DD150415A3 (en) 1978-01-03 1978-01-03 VOLTAGE-RELATED RESISTANCE

Publications (2)

Publication Number Publication Date
FR2413766A1 true FR2413766A1 (en) 1979-07-27
FR2413766B3 FR2413766B3 (en) 1981-09-11

Family

ID=5511156

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7832823A Granted FR2413766A1 (en) 1978-01-03 1978-11-21 Varistor made from several metal oxide(s) - esp. using substrate made of semiconducting zinc oxide and covered with other oxide(s)

Country Status (3)

Country Link
DD (1) DD150415A3 (en)
DE (1) DE2846385A1 (en)
FR (1) FR2413766A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3848490A (en) * 1973-11-02 1974-11-19 Gerber Garment Technology Inc Method and apparatus for controlling a cutting tool
US3953371A (en) * 1973-11-12 1976-04-27 General Electric Company Controlled grain size metal oxide varistor and process for making
DE2360962A1 (en) * 1973-12-06 1975-06-12 Siemens Ag HIGH RESISTANCE IN A THIN SINGLE CRYSTALLINE SILICONE LAYER

Also Published As

Publication number Publication date
DD150415A3 (en) 1981-09-02
FR2413766B3 (en) 1981-09-11
DE2846385A1 (en) 1979-07-12

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