GB1216603A - A piezoelectric resonator - Google Patents

A piezoelectric resonator

Info

Publication number
GB1216603A
GB1216603A GB720568A GB720568A GB1216603A GB 1216603 A GB1216603 A GB 1216603A GB 720568 A GB720568 A GB 720568A GB 720568 A GB720568 A GB 720568A GB 1216603 A GB1216603 A GB 1216603A
Authority
GB
United Kingdom
Prior art keywords
electrodes
caps
feb
resonator
piezoelectric resonator
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.)
Expired
Application number
GB720568A
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing 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 Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Publication of GB1216603A publication Critical patent/GB1216603A/en
Expired 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
    • H03H9/05—Holders; Supports
    • H03H9/10—Mounting in enclosures
    • H03H9/1007—Mounting in enclosures for bulk acoustic wave [BAW] devices
    • H03H9/1042—Mounting in enclosures for bulk acoustic wave [BAW] devices the enclosure being defined by a housing formed by a cavity in a resin

Landscapes

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

Abstract

1,216,603. Piexoelectric resonators. MURATA MFG. CO. Ltd. 14 Feb., 1968 [23 Feb., 1967], No. 7205/68. Heading HIE. The active part of a piezoelectric resonator utilizing the "trapped energy" technique is protected from an encapsulating substance by a pair of caps which enclose the electrodes but do not touch them. In the PZT resonator shown, only the part between the electrodes 8, 8<SP>1</SP> is active. The rest of the plate 7 is piezoelectrically inactive and is provided with deposited leads 9, 9<SP>1</SP>and contact pins 10, 10<SP>1</SP>. Caps 11, 11<SP>1</SP> made, e.g., of rubber, synthetic resin or metal coated with a dielectric material, are placed over the electrodes and make contact with the inactive region surrounding the electrodes. An encapsulation 12 of, e.g., expoxide or phenolic resin is then applied by dipping or moulding. The invention may be applied to multi-resonator plates.
GB720568A 1967-02-23 1968-02-14 A piezoelectric resonator Expired GB1216603A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1160767 1967-02-23

Publications (1)

Publication Number Publication Date
GB1216603A true GB1216603A (en) 1970-12-23

Family

ID=11782580

Family Applications (1)

Application Number Title Priority Date Filing Date
GB720568A Expired GB1216603A (en) 1967-02-23 1968-02-14 A piezoelectric resonator

Country Status (3)

Country Link
DE (1) DE1591298C2 (en)
GB (1) GB1216603A (en)
SE (1) SE349204B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2715202A1 (en) * 1977-04-05 1978-10-19 Draloric Electronic PIEZOELECTRIC FILTER AND PROCESS FOR ITS MANUFACTURING
JPS587672Y2 (en) * 1977-08-11 1983-02-10 株式会社村田製作所 Sealed structure of piezoelectric vibrator
EP0038496A1 (en) * 1980-04-21 1981-10-28 Siemens Aktiengesellschaft Firing device and piezoelectric coupling element for firing with galvanic decoupling

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE518651C (en) * 1928-02-20 1931-02-18 Gramophone Co Ltd Piezoelectric crystal arrangement
US2512878A (en) * 1945-12-28 1950-06-27 Brush Dev Co Piezoelectric crystal
US2595037A (en) * 1948-02-25 1952-04-29 John M Wolfskill Piezoelectric crystal apparatus
DE947480C (en) * 1951-11-27 1956-08-16 Kristall Verarbeitung Neckarbi Holder for oscillating crystals
FR1098774A (en) * 1953-02-12 1955-08-22 Philips Nv piezoelectric element
US2817778A (en) * 1953-08-10 1957-12-24 Wright Electronic Dev Company Mounting structure for disc-like piezoelectric crystal

Also Published As

Publication number Publication date
SE349204B (en) 1972-09-18
DE1591298C2 (en) 1975-04-03
DE1591298B1 (en) 1972-03-09

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