GB2013975A - Frequency adjustment of piezoelectric devices - Google Patents

Frequency adjustment of piezoelectric devices

Info

Publication number
GB2013975A
GB2013975A GB7906086A GB7906086A GB2013975A GB 2013975 A GB2013975 A GB 2013975A GB 7906086 A GB7906086 A GB 7906086A GB 7906086 A GB7906086 A GB 7906086A GB 2013975 A GB2013975 A GB 2013975A
Authority
GB
United Kingdom
Prior art keywords
frequency adjustment
piezoelectric devices
layer
depositing
conductive
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
GB7906086A
Other versions
GB2013975B (en
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB7906086A priority Critical patent/GB2013975B/en
Publication of GB2013975A publication Critical patent/GB2013975A/en
Application granted granted Critical
Publication of GB2013975B publication Critical patent/GB2013975B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
    • H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

A method of adjusting the frequency response of a thickness shear mode piezoelectric device comprising depositing on the whole of the exposed surface of at least one of the device electrodes a uniform metal layer which is sufficiently thin to be electrically non-conductive. The layer should be not more than 50 Angstroms thick and may extend on to a surface of the device around the electrode.
GB7906086A 1977-12-12 1979-02-21 Thickness shear mode piezoelectric devices Expired GB2013975B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7906086A GB2013975B (en) 1977-12-12 1979-02-21 Thickness shear mode piezoelectric devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5161677 1977-12-12
GB7906086A GB2013975B (en) 1977-12-12 1979-02-21 Thickness shear mode piezoelectric devices

Publications (2)

Publication Number Publication Date
GB2013975A true GB2013975A (en) 1979-08-15
GB2013975B GB2013975B (en) 1982-05-19

Family

ID=26266907

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7906086A Expired GB2013975B (en) 1977-12-12 1979-02-21 Thickness shear mode piezoelectric devices

Country Status (1)

Country Link
GB (1) GB2013975B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010227A1 (en) * 1978-10-20 1980-04-30 Siemens Aktiengesellschaft Piezoelectric resonator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010227A1 (en) * 1978-10-20 1980-04-30 Siemens Aktiengesellschaft Piezoelectric resonator

Also Published As

Publication number Publication date
GB2013975B (en) 1982-05-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee