JPS5669918A - Rectangular at cut quartz oscillator - Google Patents

Rectangular at cut quartz oscillator

Info

Publication number
JPS5669918A
JPS5669918A JP14664579A JP14664579A JPS5669918A JP S5669918 A JPS5669918 A JP S5669918A JP 14664579 A JP14664579 A JP 14664579A JP 14664579 A JP14664579 A JP 14664579A JP S5669918 A JPS5669918 A JP S5669918A
Authority
JP
Japan
Prior art keywords
nearly
axial direction
rectangular
cut quartz
small
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
JP14664579A
Other languages
Japanese (ja)
Inventor
Shunichi Monobukuro
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 JP14664579A priority Critical patent/JPS5669918A/en
Publication of JPS5669918A publication Critical patent/JPS5669918A/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
    • H03H9/02—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

Abstract

PURPOSE:To obtain an oscillator which is small-sized and has excellent frequency- temperature characteristics, by specifying the size ratio of an AT cut quartz oscillator whose plane shape is nearly rectangular. CONSTITUTION:In coordinates X, Y' and Z' having the X-axial positive direction facing this side and rotated counterclockwise around the X axis at cutting angle (theta) (approximate 35 deg.), quartz piece 1 has length (l) nearly in the X-axial direction, thickness (t) nearly in the Y'-axial direction, and width (w) in the Z'-axial direction. Then, w/t should be 2.0-2.8, and consequently the point of inflection is nearly at the normal point, which is very useful. In addition, l/t should be 9.8-11.0, 11.5-12.7 or 13.1-14.3, and consequently equivalent resistance R1 and the Q value are excellent and the R<1>-Q variation gradient to variation in l/t is small, so that the work will be easy. Further, fluctuations of frequency to those of temperature are less.
JP14664579A 1979-11-13 1979-11-13 Rectangular at cut quartz oscillator Pending JPS5669918A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14664579A JPS5669918A (en) 1979-11-13 1979-11-13 Rectangular at cut quartz oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14664579A JPS5669918A (en) 1979-11-13 1979-11-13 Rectangular at cut quartz oscillator

Publications (1)

Publication Number Publication Date
JPS5669918A true JPS5669918A (en) 1981-06-11

Family

ID=15412406

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14664579A Pending JPS5669918A (en) 1979-11-13 1979-11-13 Rectangular at cut quartz oscillator

Country Status (1)

Country Link
JP (1) JPS5669918A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6315510A (en) * 1986-07-08 1988-01-22 Nippon Dempa Kogyo Co Ltd Crystal resonator
JPS63285016A (en) * 1987-05-18 1988-11-22 Matsushima Kogyo Co Ltd Rectangular at vibrator for overtone
JP2010062723A (en) * 2008-09-02 2010-03-18 Epson Toyocom Corp At-cut crystal vibrating piece, at-cut crystal vibrator and oscillator
JP2014075848A (en) * 2014-01-14 2014-04-24 Seiko Epson Corp Vibration piece and oscillator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5197394A (en) * 1975-02-21 1976-08-26
JPS5267285A (en) * 1975-12-01 1977-06-03 Seiko Epson Corp Quartz crystal oscillator
JPS52128093A (en) * 1976-04-20 1977-10-27 Kinsekisha Lab Ltd Thickness slip quartz vibrator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5197394A (en) * 1975-02-21 1976-08-26
JPS5267285A (en) * 1975-12-01 1977-06-03 Seiko Epson Corp Quartz crystal oscillator
JPS52128093A (en) * 1976-04-20 1977-10-27 Kinsekisha Lab Ltd Thickness slip quartz vibrator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6315510A (en) * 1986-07-08 1988-01-22 Nippon Dempa Kogyo Co Ltd Crystal resonator
JPS63285016A (en) * 1987-05-18 1988-11-22 Matsushima Kogyo Co Ltd Rectangular at vibrator for overtone
JP2010062723A (en) * 2008-09-02 2010-03-18 Epson Toyocom Corp At-cut crystal vibrating piece, at-cut crystal vibrator and oscillator
JP2014075848A (en) * 2014-01-14 2014-04-24 Seiko Epson Corp Vibration piece and oscillator

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