JPS5468194A - Thickness slippage vibrator - Google Patents

Thickness slippage vibrator

Info

Publication number
JPS5468194A
JPS5468194A JP13529977A JP13529977A JPS5468194A JP S5468194 A JPS5468194 A JP S5468194A JP 13529977 A JP13529977 A JP 13529977A JP 13529977 A JP13529977 A JP 13529977A JP S5468194 A JPS5468194 A JP S5468194A
Authority
JP
Japan
Prior art keywords
cut
vibrator
theta
approximately
xyl
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
JP13529977A
Other languages
Japanese (ja)
Inventor
Tsutomu Nishikawa
Kenji Shirai
Takao Yuzawa
Atsushi Tani
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 JP13529977A priority Critical patent/JPS5468194A/en
Publication of JPS5468194A publication Critical patent/JPS5468194A/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
    • H03H9/02015—Characteristics of piezoelectric layers, e.g. cutting angles
    • H03H9/02031—Characteristics of piezoelectric layers, e.g. cutting angles consisting of ceramic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

PURPOSE:To improve frequency-temperature characteristic to enlarge an electromechanical coupling coefficient by changing the cut bearing of a vibrator. CONSTITUTION:In a rotary X cut LiTaO3 plate indicated by (XYl)theta, the range of theta is defined as 8 deg.<¦theta¦<14 deg.. Therefore, frequency change factor DELTAf/fe in the range from 0 deg. to 50 deg. is approximately 6x10<-4> for X cut, however, it is approximately 1x10<-4> for (XYl)10 deg.-rotated X cut. Electromechanical coupling coefficient K is approximateely 0.47 for X cut, however, it is approximately 0.4 to 0.43 for rotated X cut.
JP13529977A 1977-11-11 1977-11-11 Thickness slippage vibrator Pending JPS5468194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13529977A JPS5468194A (en) 1977-11-11 1977-11-11 Thickness slippage vibrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13529977A JPS5468194A (en) 1977-11-11 1977-11-11 Thickness slippage vibrator

Publications (1)

Publication Number Publication Date
JPS5468194A true JPS5468194A (en) 1979-06-01

Family

ID=15148448

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13529977A Pending JPS5468194A (en) 1977-11-11 1977-11-11 Thickness slippage vibrator

Country Status (1)

Country Link
JP (1) JPS5468194A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088548A2 (en) * 1982-02-22 1983-09-14 Fujitsu Limited Piezoelectric resonators

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088548A2 (en) * 1982-02-22 1983-09-14 Fujitsu Limited Piezoelectric resonators
US4454444A (en) * 1982-02-22 1984-06-12 Fujitsu Limited LiTaO3 Piezoelectric resonator

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Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20051004

A761 Written withdrawal of application

Effective date: 20070719

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