JPS57157616A - Gt-cut quartz oscillator - Google Patents

Gt-cut quartz oscillator

Info

Publication number
JPS57157616A
JPS57157616A JP4337181A JP4337181A JPS57157616A JP S57157616 A JPS57157616 A JP S57157616A JP 4337181 A JP4337181 A JP 4337181A JP 4337181 A JP4337181 A JP 4337181A JP S57157616 A JPS57157616 A JP S57157616A
Authority
JP
Japan
Prior art keywords
frequency
temperature properties
control
oscillating
overlapped
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
JP4337181A
Other languages
Japanese (ja)
Other versions
JPH0124367B2 (en
Inventor
Osamu Ochiai
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP4337181A priority Critical patent/JPS57157616A/en
Priority to US06/323,487 priority patent/US4447753A/en
Priority to FR8123397A priority patent/FR2502867B1/en
Priority to DE19823210578 priority patent/DE3210578A1/en
Priority to GB8208607A priority patent/GB2098395B/en
Priority to CH184982A priority patent/CH653209GA3/fr
Publication of JPS57157616A publication Critical patent/JPS57157616A/en
Publication of JPH0124367B2 publication Critical patent/JPH0124367B2/ja
Granted 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
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02015—Characteristics of piezoelectric layers, e.g. cutting angles
    • H03H9/02023—Characteristics of piezoelectric layers, e.g. cutting angles consisting of quartz
    • 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
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02086—Means for compensation or elimination of undesirable effects
    • H03H9/02102—Means for compensation or elimination of undesirable effects of temperature influence
    • 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
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02157—Dimensional parameters, e.g. ratio between two dimension parameters, length, width or thickness
    • 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
    • H03H9/19—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator consisting of quartz
    • 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
    • H03H2003/0414—Resonance frequency
    • H03H2003/0421—Modification of the thickness of an element
    • H03H2003/0428—Modification of the thickness of an element of an electrode

Abstract

PURPOSE:To improve the temperature properties, by providing an overlapped part for control of frequency or frequency temperature properties at the places near the center part on the long side of an oscillating part and at least one area of four sides of the oscillating part. CONSTITUTION:A Y plate is turned by 49-56 deg. round an X axis and then + or -40- 50 deg. within a main plane to obtain a thin quartz plate. Then a GT-cut quartz oscillator having an oscillating part 4 and a supporting part 5 is produced from the thin quartz plate. A driving electrode 6 is provided nearly on the entire surface of the part 4, and the upper and lower electrodes are pulled out to the parts 5 opposite to each other. An overlapped part 7 for control frequency is set at the area near the center of the long side of the part 4, and at the same time an overlapped part 8 for control of frequency temperature properties is provided at the four corners of the part 4 respectively. The oscillation frequency of the short side, i.e. the main oscillation is controlled by varying the degree of elimination of parts 7 and 8. Thus the temperature properties can be improved.
JP4337181A 1981-03-25 1981-03-25 Gt-cut quartz oscillator Granted JPS57157616A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP4337181A JPS57157616A (en) 1981-03-25 1981-03-25 Gt-cut quartz oscillator
US06/323,487 US4447753A (en) 1981-03-25 1981-11-20 Miniature GT-cut quartz resonator
FR8123397A FR2502867B1 (en) 1981-03-25 1981-12-15 MINIATURE QUARTZ RESONATOR IN GT CUT
DE19823210578 DE3210578A1 (en) 1981-03-25 1982-03-23 SWING QUARTZ
GB8208607A GB2098395B (en) 1981-03-25 1982-03-24 Gt-cut piezo-electric resonators
CH184982A CH653209GA3 (en) 1981-03-25 1982-03-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4337181A JPS57157616A (en) 1981-03-25 1981-03-25 Gt-cut quartz oscillator

Publications (2)

Publication Number Publication Date
JPS57157616A true JPS57157616A (en) 1982-09-29
JPH0124367B2 JPH0124367B2 (en) 1989-05-11

Family

ID=12661977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4337181A Granted JPS57157616A (en) 1981-03-25 1981-03-25 Gt-cut quartz oscillator

Country Status (1)

Country Link
JP (1) JPS57157616A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01179513A (en) * 1988-01-09 1989-07-17 Kinseki Ltd Etching processing method for crystal resonator
JPH02186815A (en) * 1989-01-13 1990-07-23 Seiko Electronic Components Ltd Short side crystal resonator
JP2014150422A (en) * 2013-02-01 2014-08-21 Murata Mfg Co Ltd Tuning-fork type crystal vibrator and manufacturing method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5233492A (en) * 1975-09-10 1977-03-14 Seikosha Co Ltd Adjusting method of frequency temperature characteristics of gt-cut cr ystal resonator
JPS533178A (en) * 1976-06-30 1978-01-12 Seiko Instr & Electronics Ltd Crystal vibrator
JPS5469986A (en) * 1977-11-15 1979-06-05 Seiko Instr & Electronics Ltd Piezoelectric vibrator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5233492A (en) * 1975-09-10 1977-03-14 Seikosha Co Ltd Adjusting method of frequency temperature characteristics of gt-cut cr ystal resonator
JPS533178A (en) * 1976-06-30 1978-01-12 Seiko Instr & Electronics Ltd Crystal vibrator
JPS5469986A (en) * 1977-11-15 1979-06-05 Seiko Instr & Electronics Ltd Piezoelectric vibrator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01179513A (en) * 1988-01-09 1989-07-17 Kinseki Ltd Etching processing method for crystal resonator
JPH0575288B2 (en) * 1988-01-09 1993-10-20 Kinseki Ltd
JPH02186815A (en) * 1989-01-13 1990-07-23 Seiko Electronic Components Ltd Short side crystal resonator
JP2014150422A (en) * 2013-02-01 2014-08-21 Murata Mfg Co Ltd Tuning-fork type crystal vibrator and manufacturing method thereof

Also Published As

Publication number Publication date
JPH0124367B2 (en) 1989-05-11

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