JPS55105424A - Tuning fork type crystal oscillator - Google Patents

Tuning fork type crystal oscillator

Info

Publication number
JPS55105424A
JPS55105424A JP1261179A JP1261179A JPS55105424A JP S55105424 A JPS55105424 A JP S55105424A JP 1261179 A JP1261179 A JP 1261179A JP 1261179 A JP1261179 A JP 1261179A JP S55105424 A JPS55105424 A JP S55105424A
Authority
JP
Japan
Prior art keywords
crystal
thickness
electrode
crystal oscillator
width
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
JP1261179A
Other languages
Japanese (ja)
Inventor
Hironori Shimazu
Hideo Tabata
Akihito Kudo
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 JP1261179A priority Critical patent/JPS55105424A/en
Publication of JPS55105424A publication Critical patent/JPS55105424A/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
    • H03H9/21—Crystal tuning forks
    • H03H9/215—Crystal tuning forks consisting of quartz

Abstract

PURPOSE:To decrease the crystal impedance as well as increase the driving efficiency for the crystal oscillator which is formed through photo etching, by specifying both the electrode structure and the thickness of the electrode film each. CONSTITUTION:For crystal plate 1, the length is set to 5mm or less along with the thickness set to 0.05-0.3mm. And the width of electrode 2-2 on the main surface is set to 70-90% the width of the crystal plate with installation of the electrode featuring the width of 100% the thickness of the side surface. In such constitution, the crystal oscillator is formed through photo etching. For such crystal oscillator, the electric field is applied over the entire inside of the crystal at the exciting time, thus featuring the high driving efficiency and low crystal impedance each. The film thickness of the electrode is set to about 300-30000Angstrom since the too small and large thickness of the film cause the incomplete connection and the large resistance respectively to increase the impdance in both cases.
JP1261179A 1979-02-06 1979-02-06 Tuning fork type crystal oscillator Pending JPS55105424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1261179A JPS55105424A (en) 1979-02-06 1979-02-06 Tuning fork type crystal oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1261179A JPS55105424A (en) 1979-02-06 1979-02-06 Tuning fork type crystal oscillator

Publications (1)

Publication Number Publication Date
JPS55105424A true JPS55105424A (en) 1980-08-13

Family

ID=11810153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1261179A Pending JPS55105424A (en) 1979-02-06 1979-02-06 Tuning fork type crystal oscillator

Country Status (1)

Country Link
JP (1) JPS55105424A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001203560A (en) * 2000-01-20 2001-07-27 Nippon Dempa Kogyo Co Ltd Tuning fork type quartz vibrator
JP2018155576A (en) * 2017-03-17 2018-10-04 太陽誘電株式会社 Detection element and detection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001203560A (en) * 2000-01-20 2001-07-27 Nippon Dempa Kogyo Co Ltd Tuning fork type quartz vibrator
JP2018155576A (en) * 2017-03-17 2018-10-04 太陽誘電株式会社 Detection element and detection device

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