JPS5768925A - Piezoelectric device - Google Patents

Piezoelectric device

Info

Publication number
JPS5768925A
JPS5768925A JP14544780A JP14544780A JPS5768925A JP S5768925 A JPS5768925 A JP S5768925A JP 14544780 A JP14544780 A JP 14544780A JP 14544780 A JP14544780 A JP 14544780A JP S5768925 A JPS5768925 A JP S5768925A
Authority
JP
Japan
Prior art keywords
plate
rotating
cut
lamb wave
thickness
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
JP14544780A
Other languages
Japanese (ja)
Inventor
Tsutomu Nishikawa
Atsushi Tani
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP14544780A priority Critical patent/JPS5768925A/en
Publication of JPS5768925A publication Critical patent/JPS5768925A/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 devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02543—Characteristics of substrate, e.g. cutting angles
    • H03H9/02551—Characteristics of substrate, e.g. cutting angles of quartz substrates

Abstract

PURPOSE:To achieve a Lamb wave device excellent in temperature characteristic, by the selection that the relation between the standard thickness and cut-azimuth of a crystal rotating Y plate can satisfy the specified conditions. CONSTITUTION:Crossing finger electrode transducers 11, 12 are provided on a rotating Y-cut plate. When the plate thickness of the rotating Y-cut plate is thick, since the Lamb wave is excited for the front and back of the plate, the sadjustment of frequency can be made easy by providing an electrode film 13 at the back sides opposing to the transducers 11, 12, respectively. The Lamb wave device excellent in temperature characteristic having the zero temperature coefficient near room temperature can be obtained by selecting the standard plate thickness of the rotating Y plate, T=h/DELTA (where: eta is plate thickness and LAMBDA is the wavelength of Lamb wave), cut-azimuth so that the relation of Equation 1 can be satisfied.
JP14544780A 1980-10-17 1980-10-17 Piezoelectric device Pending JPS5768925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14544780A JPS5768925A (en) 1980-10-17 1980-10-17 Piezoelectric device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14544780A JPS5768925A (en) 1980-10-17 1980-10-17 Piezoelectric device

Publications (1)

Publication Number Publication Date
JPS5768925A true JPS5768925A (en) 1982-04-27

Family

ID=15385429

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14544780A Pending JPS5768925A (en) 1980-10-17 1980-10-17 Piezoelectric device

Country Status (1)

Country Link
JP (1) JPS5768925A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011259348A (en) * 2010-06-11 2011-12-22 River Eletec Kk Acoustic wave element
WO2014208664A1 (en) 2013-06-28 2014-12-31 リバーエレテック株式会社 Elastic wave device
US11258424B1 (en) 2020-08-18 2022-02-22 River Eletec Corporation Acoustic wave device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011259348A (en) * 2010-06-11 2011-12-22 River Eletec Kk Acoustic wave element
WO2014208664A1 (en) 2013-06-28 2014-12-31 リバーエレテック株式会社 Elastic wave device
US9800225B2 (en) 2013-06-28 2017-10-24 River Eletec Corporation Elastic wave device
US11258424B1 (en) 2020-08-18 2022-02-22 River Eletec Corporation Acoustic wave device

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