JPS5575323A - Thickness shear oscillator - Google Patents

Thickness shear oscillator

Info

Publication number
JPS5575323A
JPS5575323A JP14949478A JP14949478A JPS5575323A JP S5575323 A JPS5575323 A JP S5575323A JP 14949478 A JP14949478 A JP 14949478A JP 14949478 A JP14949478 A JP 14949478A JP S5575323 A JPS5575323 A JP S5575323A
Authority
JP
Japan
Prior art keywords
oscillator
length
thickness shear
axis direction
oscillation
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
JP14949478A
Other languages
Japanese (ja)
Inventor
Hiroshi Onuki
Isao Shinoda
Seiji Higashichi
Yoshio Sano
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments and Electronics 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 Seiko Instruments and Electronics Ltd filed Critical Seiko Instruments and Electronics Ltd
Priority to JP14949478A priority Critical patent/JPS5575323A/en
Publication of JPS5575323A publication Critical patent/JPS5575323A/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
    • H03H9/02—Details
    • H03H9/05—Holders or supports
    • H03H9/0504—Holders or supports for bulk acoustic wave devices
    • H03H9/0528—Holders or supports for bulk acoustic wave devices consisting of clips
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/13—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials
    • H03H9/132—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials characterized by a particular shape

Landscapes

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

Abstract

PURPOSE:To realize an ultra-thin thickness shear oscillator featuring the reduced crystal impedance by setting the ratio within the fixed range between the bevel processing measurements and the oscillator bar length in the X axis. CONSTITUTION:Crystal oscillator bar 5 features a small-size and rectangular thickness shear oscillator formed slender in the X axis direction with set close to 35 deg., receiving the bevel processing at the both ends in the X axis direction. And angle theta formed by the oscillation main face and the bevel face is set within the range of lB/lX=0.15-0.28 and lE/lM=0.8-1.4 with beta=3-11 deg. each, where lX is the length of the oscillator bar in the X axis direction, lM is the length of the oscillation main face part, lB is the length of the beval face part, and lE is the lengeh of the oscillation electrode respectively. Thus the crystal impedance can be reduced.
JP14949478A 1978-12-01 1978-12-01 Thickness shear oscillator Pending JPS5575323A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14949478A JPS5575323A (en) 1978-12-01 1978-12-01 Thickness shear oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14949478A JPS5575323A (en) 1978-12-01 1978-12-01 Thickness shear oscillator

Publications (1)

Publication Number Publication Date
JPS5575323A true JPS5575323A (en) 1980-06-06

Family

ID=15476367

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14949478A Pending JPS5575323A (en) 1978-12-01 1978-12-01 Thickness shear oscillator

Country Status (1)

Country Link
JP (1) JPS5575323A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6315510A (en) * 1986-07-08 1988-01-22 Nippon Dempa Kogyo Co Ltd Crystal resonator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6315510A (en) * 1986-07-08 1988-01-22 Nippon Dempa Kogyo Co Ltd Crystal resonator

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