JPS57202112A - Piezoelectric oscillator - Google Patents

Piezoelectric oscillator

Info

Publication number
JPS57202112A
JPS57202112A JP8652081A JP8652081A JPS57202112A JP S57202112 A JPS57202112 A JP S57202112A JP 8652081 A JP8652081 A JP 8652081A JP 8652081 A JP8652081 A JP 8652081A JP S57202112 A JPS57202112 A JP S57202112A
Authority
JP
Japan
Prior art keywords
main electrode
electrode
comparison
electrode pattern
polarization
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
JP8652081A
Other languages
Japanese (ja)
Inventor
Masaaki Ono
Yoshiaki Fujiwara
Masanobu Yanagisawa
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 JP8652081A priority Critical patent/JPS57202112A/en
Publication of JPS57202112A publication Critical patent/JPS57202112A/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
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
    • H03H9/177—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator of the energy-trap type

Abstract

PURPOSE:To increase the Q value, by selectively polarizing only a piezoelectric base forming a main electrode pattern. CONSTITUTION:A metallic film is formed by vapor-depositing or sputtering Au or Ag on a piezoelectric base of LiTaO3 crystal or PZT, an electrode pattern consisting of a main electrode 2 and a lead electrode 3 is formed by the photolithography, and a separate metallic plate is brought into abutment on this main electrode. With this base laminated and fixed, the direction of spontaneous polarization of the main electrode only is arranged by the polarization at a temperature just beneath the Curie point. As a result, the spontaneous polarization at each domain except for the main electrode pattern forming position 2 is at random and the piezoelectricity is extremely small in comparison with the polarized part. Thus, the energy closing is much more perfect to the auxiliary electrode 3 in comparison with the main electrode 2.
JP8652081A 1981-06-05 1981-06-05 Piezoelectric oscillator Pending JPS57202112A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8652081A JPS57202112A (en) 1981-06-05 1981-06-05 Piezoelectric oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8652081A JPS57202112A (en) 1981-06-05 1981-06-05 Piezoelectric oscillator

Publications (1)

Publication Number Publication Date
JPS57202112A true JPS57202112A (en) 1982-12-10

Family

ID=13889256

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8652081A Pending JPS57202112A (en) 1981-06-05 1981-06-05 Piezoelectric oscillator

Country Status (1)

Country Link
JP (1) JPS57202112A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5446335A (en) * 1993-02-19 1995-08-29 Murata Mfg. Co., Ltd. Piezoresonator with a built-in capacitor and a manufacturing method thereof
US5796207A (en) * 1997-04-28 1998-08-18 Rutgers, The State University Of New Jersey Oriented piezo electric ceramics and ceramic/polymer composites
US6297577B1 (en) 1995-01-12 2001-10-02 Minolta Co., Ltd. Light controlling apparatus
US6628047B1 (en) * 1993-07-15 2003-09-30 General Electric Company Broadband ultrasonic transducers and related methods of manufacture
WO2007091376A1 (en) * 2006-02-08 2007-08-16 Murata Manufacturing Co., Ltd. Piezoelectric oscillator
WO2007091433A1 (en) * 2006-02-08 2007-08-16 Murata Manufacturing Co., Ltd. Piezoelectric vibrator

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5446335A (en) * 1993-02-19 1995-08-29 Murata Mfg. Co., Ltd. Piezoresonator with a built-in capacitor and a manufacturing method thereof
US6628047B1 (en) * 1993-07-15 2003-09-30 General Electric Company Broadband ultrasonic transducers and related methods of manufacture
US6297577B1 (en) 1995-01-12 2001-10-02 Minolta Co., Ltd. Light controlling apparatus
US5796207A (en) * 1997-04-28 1998-08-18 Rutgers, The State University Of New Jersey Oriented piezo electric ceramics and ceramic/polymer composites
WO2007091376A1 (en) * 2006-02-08 2007-08-16 Murata Manufacturing Co., Ltd. Piezoelectric oscillator
WO2007091433A1 (en) * 2006-02-08 2007-08-16 Murata Manufacturing Co., Ltd. Piezoelectric vibrator
GB2447192A (en) * 2006-02-08 2008-09-03 Murata Manufacturing Co Piezoelectric vibrator
JPWO2007091433A1 (en) * 2006-02-08 2009-07-02 株式会社村田製作所 Piezoelectric vibrator
US7583007B2 (en) 2006-02-08 2009-09-01 Murata Manufacturing Co., Ltd. Piezoelectric vibrator
GB2447192B (en) * 2006-02-08 2011-02-02 Murata Manufacturing Co Piezoelectric vibrator
JP4811411B2 (en) * 2006-02-08 2011-11-09 株式会社村田製作所 Piezoelectric vibrator

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