FR2424636A1 - Resonateur piezo-electrique - Google Patents

Resonateur piezo-electrique

Info

Publication number
FR2424636A1
FR2424636A1 FR7812655A FR7812655A FR2424636A1 FR 2424636 A1 FR2424636 A1 FR 2424636A1 FR 7812655 A FR7812655 A FR 7812655A FR 7812655 A FR7812655 A FR 7812655A FR 2424636 A1 FR2424636 A1 FR 2424636A1
Authority
FR
France
Prior art keywords
piezoelectric resonator
required frequency
thickness
rectangular piezoelectric
cut form
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.)
Withdrawn
Application number
FR7812655A
Other languages
English (en)
Inventor
Hugo Wyss
George Fisher
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.)
Ebauches SA
Original Assignee
Ebauches SA
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 Ebauches SA filed Critical Ebauches SA
Priority to FR7812655A priority Critical patent/FR2424636A1/fr
Priority to JP4981679A priority patent/JPS5577221A/ja
Publication of FR2424636A1 publication Critical patent/FR2424636A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02157—Dimensional parameters, e.g. ratio between two dimension parameters, length, width or thickness
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
    • H03H9/19—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator consisting of quartz

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

LA PRESENTE INVENTION A TRAIT A UN RESONATEUR A CRISTAL PIEZO-ELECTRIQUE MINIATURE, ET NOTAMMENT A UN RESONATEUR A QUARTZ DE COUPE AT, DESTINE A VIBRER EN UN MODE DE CISAILLEMENT D'EPAISSEUR. A PARTIR D'UNE PLAQUETTE EN FORME DE PARALLELEPIPEDE RECTANGLE, ON L'USINE DE SORTE QUE SA FORME FINALE EST CARACTERISEE EN CE QUE LES ARETES ET LES SOMMETS SONT ARRONDIS ET EN CE QUE L'EPAISSEUR T EST INFERIEURE AUX BORDS QU'AU CENTRE DU RESONATEUR, DE SORTE QUE LA SECTION LONGITUDINALE OU TRANSVERSALE EST SEMBLABLE A UNE ELLIPSE PLUS OU MOINS TRONQUEE.
FR7812655A 1978-04-28 1978-04-28 Resonateur piezo-electrique Withdrawn FR2424636A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7812655A FR2424636A1 (fr) 1978-04-28 1978-04-28 Resonateur piezo-electrique
JP4981679A JPS5577221A (en) 1978-04-28 1979-04-24 Piezooelectric resonator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7812655A FR2424636A1 (fr) 1978-04-28 1978-04-28 Resonateur piezo-electrique

Publications (1)

Publication Number Publication Date
FR2424636A1 true FR2424636A1 (fr) 1979-11-23

Family

ID=9207722

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7812655A Withdrawn FR2424636A1 (fr) 1978-04-28 1978-04-28 Resonateur piezo-electrique

Country Status (2)

Country Link
JP (1) JPS5577221A (fr)
FR (1) FR2424636A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0520015Y2 (fr) * 1985-08-12 1993-05-26
JPS63285016A (ja) * 1987-05-18 1988-11-22 Matsushima Kogyo Co Ltd オ−バ−ト−ン用矩形状ａｔ振動子
JPS6446310A (en) * 1987-08-14 1989-02-20 Matsushima Kogyo Kk Rectangular at vibrator
JP2884569B2 (ja) * 1988-04-11 1999-04-19 セイコーエプソン株式会社 オーバートーン用矩形状ａｔカット水晶振動子の製造方法
JP2884568B2 (ja) * 1988-04-11 1999-04-19 セイコーエプソン株式会社 矩形状ａｔカット水晶振動子の製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2261791A (en) * 1939-04-29 1941-11-04 Rca Corp Piezoelectric thickness-mode quartz crystal
FR867901A (fr) * 1938-08-31 1941-12-05 Telefunken Gelellschaft Fu R D Perfectionnements aux cristaux piezo-électriques oscillants
US2467353A (en) * 1939-02-16 1949-04-12 John M Wolfskill Piezoelectric crystal apparatus
FR2186779A1 (fr) * 1972-05-30 1974-01-11 Suisse Horlogerie
FR2255711A1 (fr) * 1973-12-21 1975-07-18 Fukuyo Hitohiro

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR867901A (fr) * 1938-08-31 1941-12-05 Telefunken Gelellschaft Fu R D Perfectionnements aux cristaux piezo-électriques oscillants
US2467353A (en) * 1939-02-16 1949-04-12 John M Wolfskill Piezoelectric crystal apparatus
US2261791A (en) * 1939-04-29 1941-11-04 Rca Corp Piezoelectric thickness-mode quartz crystal
FR2186779A1 (fr) * 1972-05-30 1974-01-11 Suisse Horlogerie
FR2255711A1 (fr) * 1973-12-21 1975-07-18 Fukuyo Hitohiro

Also Published As

Publication number Publication date
JPS5577221A (en) 1980-06-10

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Legal Events

Date Code Title Description
ST Notification of lapse