JPS5368053A - Elastic surface wave device - Google Patents

Elastic surface wave device

Info

Publication number
JPS5368053A
JPS5368053A JP14288476A JP14288476A JPS5368053A JP S5368053 A JPS5368053 A JP S5368053A JP 14288476 A JP14288476 A JP 14288476A JP 14288476 A JP14288476 A JP 14288476A JP S5368053 A JPS5368053 A JP S5368053A
Authority
JP
Japan
Prior art keywords
surface wave
wave device
elastic surface
features
providing
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
JP14288476A
Other languages
Japanese (ja)
Inventor
Mioji Nojima
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14288476A priority Critical patent/JPS5368053A/en
Publication of JPS5368053A publication Critical patent/JPS5368053A/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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02866—Means for compensation or elimination of undesirable effects of bulk wave excitation and reflections
    • 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02614—Treatment of substrates, e.g. curved, spherical, cylindrical substrates ensuring closed round-about circuits for the acoustical waves
    • H03H9/02622—Treatment of substrates, e.g. curved, spherical, cylindrical substrates ensuring closed round-about circuits for the acoustical waves of the surface, including back surface

Landscapes

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

Abstract

PURPOSE:To eliminate the ripple caused by the bulk wave as well as to facilitate the production with an enhanced yield, by providing the input/output electrode on the surface which features a positive polarization direction of the surface wave propagation medium (LiTaO3) and providing a chemical etching surface to the surface which features a negative direction.
JP14288476A 1976-11-30 1976-11-30 Elastic surface wave device Pending JPS5368053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14288476A JPS5368053A (en) 1976-11-30 1976-11-30 Elastic surface wave device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14288476A JPS5368053A (en) 1976-11-30 1976-11-30 Elastic surface wave device

Publications (1)

Publication Number Publication Date
JPS5368053A true JPS5368053A (en) 1978-06-17

Family

ID=15325825

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14288476A Pending JPS5368053A (en) 1976-11-30 1976-11-30 Elastic surface wave device

Country Status (1)

Country Link
JP (1) JPS5368053A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5708402A (en) * 1994-09-28 1998-01-13 Canon Kabushiki Kaisha Surface acoustic wave device improved in convolution efficiency, receiver using it, communication system using it, and method for producing surface acoustic wave device improved in convoluting efficiency

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5708402A (en) * 1994-09-28 1998-01-13 Canon Kabushiki Kaisha Surface acoustic wave device improved in convolution efficiency, receiver using it, communication system using it, and method for producing surface acoustic wave device improved in convoluting efficiency

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