JPS5530286A - Thickness sliding flection crystal vibrator - Google Patents

Thickness sliding flection crystal vibrator

Info

Publication number
JPS5530286A
JPS5530286A JP10421778A JP10421778A JPS5530286A JP S5530286 A JPS5530286 A JP S5530286A JP 10421778 A JP10421778 A JP 10421778A JP 10421778 A JP10421778 A JP 10421778A JP S5530286 A JPS5530286 A JP S5530286A
Authority
JP
Japan
Prior art keywords
flection
thickness
axis
crystal vibrator
thickness sliding
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
JP10421778A
Other languages
Japanese (ja)
Other versions
JPS6246088B2 (en
Inventor
Hirofumi Kawashima
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 Inc
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 Inc filed Critical Seiko Instruments Inc
Priority to JP10421778A priority Critical patent/JPS5530286A/en
Publication of JPS5530286A publication Critical patent/JPS5530286A/en
Publication of JPS6246088B2 publication Critical patent/JPS6246088B2/ja
Granted 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
    • H03H9/02086—Means for compensation or elimination of undesirable effects
    • H03H9/02102—Means for compensation or elimination of undesirable effects of temperature influence
    • 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

Landscapes

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

Abstract

PURPOSE:To improve frequency-temperature characteristics by setting ratios of the widths of the thickness sliding flection vibrator to its thickness between 0.9-1.8, and 2.0-3.5 and the cut angle to -49 deg.. CONSTITUTION:The electroc axis, mechanical axis and light axis of a crystal are represented by X, Y and Z, and Yand Z are rotated on the X axis by angle theta (-49 deg.). In addition, x0, y0 and z0 denote the width, thickness and length of a crystal vibrator; and setting x0/y0 between 0.9-1.8 for the 2nd higher harmonic of flection vibration and x0/yo between 2.0-3.5 for the 4th higher harmonic improves frequency-temperature characteristics as compared with those of a conventional pure BT cut thickness sliding crystal vibrator.
JP10421778A 1978-08-25 1978-08-25 Thickness sliding flection crystal vibrator Granted JPS5530286A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10421778A JPS5530286A (en) 1978-08-25 1978-08-25 Thickness sliding flection crystal vibrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10421778A JPS5530286A (en) 1978-08-25 1978-08-25 Thickness sliding flection crystal vibrator

Publications (2)

Publication Number Publication Date
JPS5530286A true JPS5530286A (en) 1980-03-04
JPS6246088B2 JPS6246088B2 (en) 1987-09-30

Family

ID=14374783

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10421778A Granted JPS5530286A (en) 1978-08-25 1978-08-25 Thickness sliding flection crystal vibrator

Country Status (1)

Country Link
JP (1) JPS5530286A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5290289A (en) * 1976-01-20 1977-07-29 Suisse Horlogerie Piezooelectric resonator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5290289A (en) * 1976-01-20 1977-07-29 Suisse Horlogerie Piezooelectric resonator

Also Published As

Publication number Publication date
JPS6246088B2 (en) 1987-09-30

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