JPS5714298A - Electret device - Google Patents

Electret device

Info

Publication number
JPS5714298A
JPS5714298A JP8882280A JP8882280A JPS5714298A JP S5714298 A JPS5714298 A JP S5714298A JP 8882280 A JP8882280 A JP 8882280A JP 8882280 A JP8882280 A JP 8882280A JP S5714298 A JPS5714298 A JP S5714298A
Authority
JP
Japan
Prior art keywords
members
electret
equal
back electrodes
pair
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.)
Pending
Application number
JP8882280A
Other languages
Japanese (ja)
Inventor
Hiroto Wada
Masamichi Tanaka
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8882280A priority Critical patent/JPS5714298A/en
Publication of JPS5714298A publication Critical patent/JPS5714298A/en
Priority to US06/500,831 priority patent/US4443711A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/22—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using ferroelectric elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
    • H01G7/02—Electrets, i.e. having a permanently-polarised dielectric

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Abstract

PURPOSE:To produce charges equal to the algebraic sum of each element potential and in opposite polarity to a pair of back electrodes with uniform distribution, by opposing a pair of electret elements for the electret members and clipping a dielectric substance between them. CONSTITUTION:Electret members of electret elements 231, 232 coated with the members 221, 222 made of macropolymer film such as PP, TFE, FEP are opposed to back electrodes 211, 212 made of a conductive metallic base and a dielectric substance 24 made of a conductive metallic material or an organic substance having equal or less area shape as the electret members is floated from ground and inserted between them. Although the nonelectret part is present to the members 221, 222, the back electrodes have charges with opposite polarity and equal to the algebraic sum of the potentials of each element are produced with uniform distribution. Thus, products rich in the moisture-proof and stable in the characteristics can be manufactured.
JP8882280A 1980-06-30 1980-06-30 Electret device Pending JPS5714298A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP8882280A JPS5714298A (en) 1980-06-30 1980-06-30 Electret device
US06/500,831 US4443711A (en) 1980-06-30 1983-06-03 Electret device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8882280A JPS5714298A (en) 1980-06-30 1980-06-30 Electret device

Publications (1)

Publication Number Publication Date
JPS5714298A true JPS5714298A (en) 1982-01-25

Family

ID=13953614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8882280A Pending JPS5714298A (en) 1980-06-30 1980-06-30 Electret device

Country Status (1)

Country Link
JP (1) JPS5714298A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012503872A (en) * 2008-09-25 2012-02-09 コミッサリア ア レネルジー アトミーク エ オ ゼネルジ ザルタナテイヴ Variable capacitance system with flexible dielectric

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012503872A (en) * 2008-09-25 2012-02-09 コミッサリア ア レネルジー アトミーク エ オ ゼネルジ ザルタナテイヴ Variable capacitance system with flexible dielectric

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