GB1328481A - Resonant crystals of lithium tantalate and electrical devices utilising them - Google Patents

Resonant crystals of lithium tantalate and electrical devices utilising them

Info

Publication number
GB1328481A
GB1328481A GB33771A GB33771A GB1328481A GB 1328481 A GB1328481 A GB 1328481A GB 33771 A GB33771 A GB 33771A GB 33771 A GB33771 A GB 33771A GB 1328481 A GB1328481 A GB 1328481A
Authority
GB
United Kingdom
Prior art keywords
crystal
length
zyw
litao
axis
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.)
Expired
Application number
GB33771A
Other languages
English (en)
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.)
AT&T Corp
Original Assignee
Western Electric Co 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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB1328481A publication Critical patent/GB1328481A/en
Expired 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 elements; 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)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
GB33771A 1970-01-09 1971-01-04 Resonant crystals of lithium tantalate and electrical devices utilising them Expired GB1328481A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US169970A 1970-01-09 1970-01-09

Publications (1)

Publication Number Publication Date
GB1328481A true GB1328481A (en) 1973-08-30

Family

ID=34919231

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33771A Expired GB1328481A (en) 1970-01-09 1971-01-04 Resonant crystals of lithium tantalate and electrical devices utilising them

Country Status (5)

Country Link
US (1) US3601639A (enExample)
BE (1) BE761345A (enExample)
FR (1) FR2075375A5 (enExample)
GB (1) GB1328481A (enExample)
SE (1) SE362178B (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725827A (en) * 1972-05-17 1973-04-03 Us Air Force High coupling low diffraction acoustic surface wave delay line
US4016440A (en) * 1974-05-28 1977-04-05 Texas Instruments Incorporated Particularly oriented plate-like monocrystalline piezoelectric body and acoustic surface wave filter device employing same
US3955109A (en) * 1974-11-29 1976-05-04 Bell Telephone Laboratories, Incorporated Crystal resonator of (yzw)θ orientation having a thickness to width ratio of less than one
US4001767A (en) * 1975-11-18 1977-01-04 The United States Of America As Represented By The Secretary Of The Air Force Low diffraction loss-low spurious response LiTaO3 substrate for surface acoustic wave devices
JPS604599B2 (ja) * 1976-03-17 1985-02-05 株式会社東芝 タンタル酸リチウム単結晶の製造方法
JPS53116796A (en) * 1977-03-22 1978-10-12 Seiko Instr & Electronics Ltd Lithium tantalate vibrator
JPS5595416A (en) * 1979-01-11 1980-07-19 Noto Denshi Kogyo Kk Ladder type piezoelectric filter
US4469979A (en) * 1983-05-27 1984-09-04 Statek Corporation Microresonator of double-ended tuning fork configuration
US4531073A (en) * 1983-05-31 1985-07-23 Ohaus Scale Corporation Piezoelectric crystal resonator with reduced impedance and sensitivity to change in humidity
US5530408A (en) * 1995-05-25 1996-06-25 The United States Of America As Represented By The Secretary Of The Army Method of making an oven controlled crystal oscillator the frequency of which remains ultrastable under temperature variations
US9154103B2 (en) 2012-01-30 2015-10-06 Avago Technologies General Ip (Singapore) Pte. Ltd. Temperature controlled acoustic resonator
US9667218B2 (en) * 2012-01-30 2017-05-30 Avago Technologies General Ip (Singapore) Pte. Ltd. Temperature controlled acoustic resonator comprising feedback circuit
US10848121B2 (en) 2016-10-14 2020-11-24 Qorvo Us, Inc. Guided SAW device
US10924085B2 (en) * 2016-10-17 2021-02-16 Qorvo Us, Inc. Guided acoustic wave device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2486187A (en) * 1947-04-09 1949-10-25 Bell Telephone Labor Inc Piezoelectric crystal apparatus
US3461408A (en) * 1967-02-09 1969-08-12 Bell Telephone Labor Inc Oriented litao3 crystal and devices using same
US3525885A (en) * 1967-06-01 1970-08-25 Bell Telephone Labor Inc Low temperature-frequency coefficient lithium tantalate cuts and devices utilizing same

Also Published As

Publication number Publication date
FR2075375A5 (enExample) 1971-10-08
DE2100809A1 (de) 1971-07-22
DE2100809B2 (de) 1972-09-21
SE362178B (enExample) 1973-11-26
BE761345A (fr) 1971-06-16
US3601639A (en) 1971-08-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees