JPS54151390A - Crystal oscillator of rectangular at cut - Google Patents

Crystal oscillator of rectangular at cut

Info

Publication number
JPS54151390A
JPS54151390A JP6028578A JP6028578A JPS54151390A JP S54151390 A JPS54151390 A JP S54151390A JP 6028578 A JP6028578 A JP 6028578A JP 6028578 A JP6028578 A JP 6028578A JP S54151390 A JPS54151390 A JP S54151390A
Authority
JP
Japan
Prior art keywords
cut
axis
rectangular
production
length
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
JP6028578A
Other languages
Japanese (ja)
Inventor
Naoyuki Echigo
Shiro Yamashita
Tsuneo Kuwabara
Kunihiro Takahashi
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 JP6028578A priority Critical patent/JPS54151390A/en
Priority to FR7835532A priority patent/FR2426338A1/en
Priority to GB7849788A priority patent/GB2021311B/en
Priority to US06/033,229 priority patent/US4247797A/en
Priority to DE19792920356 priority patent/DE2920356A1/en
Priority to CH475379A priority patent/CH634717B/en
Publication of JPS54151390A publication Critical patent/JPS54151390A/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

Abstract

PURPOSE:To enable the mass-production of long and AT cut rectangular crystal oscillators, by selecting the length l of the crystal chip in AT-cut toward X axis, the width W toward Z' axis, the thickness t toward Y' axis, and W/t and l/t in a given region of plane taking coordinate axis. CONSTITUTION:The end of the length l of the crystal chip is made bevel or convex shape, and the coordinates (W/l, l/t) are selected in a square of (3, 16, 15, 19) (3, 40, 15, 75)(3, 49, 15, 12)(3, 30, 15, 17). Thus, the parasitic oscillation of greater response is avoided and that of smaller response is isolated from the major oscillation. Further,by tilting the XY' plane by about 5 deg., the oscillator is made equivalent as the At-cut for an infinite plate. Then, small in size, less in the efefect of parasitic oscillation, excellent in the frequency temperature performance, and possible for machining accuracy, rectangular oscillators can be obtained with possible mass-production.
JP6028578A 1978-05-19 1978-05-19 Crystal oscillator of rectangular at cut Pending JPS54151390A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP6028578A JPS54151390A (en) 1978-05-19 1978-05-19 Crystal oscillator of rectangular at cut
FR7835532A FR2426338A1 (en) 1978-05-19 1978-12-18 RECTANGULAR QUARTZ RESONATOR IN AT SECTION
GB7849788A GB2021311B (en) 1978-05-19 1978-12-22 Rectangular at-quartz resonator
US06/033,229 US4247797A (en) 1978-05-19 1979-04-25 Rectangular AT-cut quartz resonator
DE19792920356 DE2920356A1 (en) 1978-05-19 1979-05-19 RECTANGULAR QUARTZ RESONATOR WITH AT-SECTION
CH475379A CH634717B (en) 1978-05-19 1979-05-21 RECTANGULAR QUARTZ RESONATOR IN AT SECTION.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6028578A JPS54151390A (en) 1978-05-19 1978-05-19 Crystal oscillator of rectangular at cut

Publications (1)

Publication Number Publication Date
JPS54151390A true JPS54151390A (en) 1979-11-28

Family

ID=13137718

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6028578A Pending JPS54151390A (en) 1978-05-19 1978-05-19 Crystal oscillator of rectangular at cut

Country Status (1)

Country Link
JP (1) JPS54151390A (en)

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