JPS5568722A - Element for elastic surface wave - Google Patents

Element for elastic surface wave

Info

Publication number
JPS5568722A
JPS5568722A JP14200878A JP14200878A JPS5568722A JP S5568722 A JPS5568722 A JP S5568722A JP 14200878 A JP14200878 A JP 14200878A JP 14200878 A JP14200878 A JP 14200878A JP S5568722 A JPS5568722 A JP S5568722A
Authority
JP
Japan
Prior art keywords
surface wave
elastic surface
lead
substrate
film
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
JP14200878A
Other languages
Japanese (ja)
Inventor
Shusuke Ono
Kiyotaka Wasa
Tsuneo Mitsuyu
Isao Yamazaki
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP14200878A priority Critical patent/JPS5568722A/en
Publication of JPS5568722A publication Critical patent/JPS5568722A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

PURPOSE:To obtain the excellent characteristics for use of the low frequency or the delay line by using the lead glass for the substrate material. CONSTITUTION:For elastic surface wave element 10, the single surface of non- piezoelectric substrate 12 composed mainly of the Si oxide plus the glass containing at least the lead is coated with piezoelectric zinc oxide film 11. The sound velocity v is under 2700m/s with 10mol% of the lead oxide content and in case thickness d of film 11 is small enough in comparison with wavelength lambda of the elastic surface wave, and velocity v decreases as the lead oxide increases. However, the formation of film 11 is difficult with the content of over 40mol% because some malformation is given to substrate 12. In this connection, element 10 composed of glass substrate 12 containing the lead oxide of 10-40mol% features a small v for the elastic surface wave propagating on element 10. When producing the elastic surface wave device with use of such element 10, the repetitive cycle lambda of the comb-line electrode is given as lambda=v/f. As a result the shape of element 10 is reduced.
JP14200878A 1978-11-16 1978-11-16 Element for elastic surface wave Pending JPS5568722A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14200878A JPS5568722A (en) 1978-11-16 1978-11-16 Element for elastic surface wave

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14200878A JPS5568722A (en) 1978-11-16 1978-11-16 Element for elastic surface wave

Publications (1)

Publication Number Publication Date
JPS5568722A true JPS5568722A (en) 1980-05-23

Family

ID=15305225

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14200878A Pending JPS5568722A (en) 1978-11-16 1978-11-16 Element for elastic surface wave

Country Status (1)

Country Link
JP (1) JPS5568722A (en)

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