JPS5460585A - Thin-plate tuning fork crystal oscillator - Google Patents

Thin-plate tuning fork crystal oscillator

Info

Publication number
JPS5460585A
JPS5460585A JP12739677A JP12739677A JPS5460585A JP S5460585 A JPS5460585 A JP S5460585A JP 12739677 A JP12739677 A JP 12739677A JP 12739677 A JP12739677 A JP 12739677A JP S5460585 A JPS5460585 A JP S5460585A
Authority
JP
Japan
Prior art keywords
electrode
thin
crystal oscillator
tuning fork
etching
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
JP12739677A
Other languages
Japanese (ja)
Inventor
Shigeru Kizaki
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch 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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP12739677A priority Critical patent/JPS5460585A/en
Publication of JPS5460585A publication Critical patent/JPS5460585A/en
Pending 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 elements; Electromechanical resonators
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/21—Crystal tuning forks

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

PURPOSE:To increase the effect of the side electrode by setting the optimum value for the crystal etching cross-section of the side electrode film part. CONSTITUTION:Side electrode 9 is formed by setting the etching conditions so that the basic shape of the electrode is nearly rectangular, angle alpha is set to 90 deg. for the left short side to the long side and that B/A may be formed under 30% to A (thick ness of the oscillator) for protrusion amount B of the short side for the side etching of the other right side respectively. And electrode 9 is set bisymmetric to plane electrode film 8. Thus, various kinds of optimum chracteristics can be obtained.
JP12739677A 1977-10-24 1977-10-24 Thin-plate tuning fork crystal oscillator Pending JPS5460585A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12739677A JPS5460585A (en) 1977-10-24 1977-10-24 Thin-plate tuning fork crystal oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12739677A JPS5460585A (en) 1977-10-24 1977-10-24 Thin-plate tuning fork crystal oscillator

Publications (1)

Publication Number Publication Date
JPS5460585A true JPS5460585A (en) 1979-05-16

Family

ID=14958949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12739677A Pending JPS5460585A (en) 1977-10-24 1977-10-24 Thin-plate tuning fork crystal oscillator

Country Status (1)

Country Link
JP (1) JPS5460585A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59125128U (en) * 1983-02-08 1984-08-23 日本電波工業株式会社 tuning fork crystal oscillator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59125128U (en) * 1983-02-08 1984-08-23 日本電波工業株式会社 tuning fork crystal oscillator

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