FR935839A - Perfectionnements aux cristaux piézoélectriques - Google Patents

Perfectionnements aux cristaux piézoélectriques

Info

Publication number
FR935839A
FR935839A FR935839DA FR935839A FR 935839 A FR935839 A FR 935839A FR 935839D A FR935839D A FR 935839DA FR 935839 A FR935839 A FR 935839A
Authority
FR
France
Prior art keywords
refinements
piezoelectric crystal
piezoelectric
crystal
crystal refinements
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
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
Application granted granted Critical
Publication of FR935839A publication Critical patent/FR935839A/fr
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 devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02015—Characteristics of piezoelectric layers, e.g. cutting angles
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Glass Compositions (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
FR935839D 1946-02-09 1946-11-12 Perfectionnements aux cristaux piézoélectriques Expired FR935839A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US646639A US2460520A (en) 1946-02-09 1946-02-09 Piezoelectric crystal apparatus

Publications (1)

Publication Number Publication Date
FR935839A true FR935839A (fr) 1948-07-01

Family

ID=24593852

Family Applications (1)

Application Number Title Priority Date Filing Date
FR935839D Expired FR935839A (fr) 1946-02-09 1946-11-12 Perfectionnements aux cristaux piézoélectriques

Country Status (5)

Country Link
US (1) US2460520A (fr)
CH (1) CH258971A (fr)
ES (1) ES176776A1 (fr)
FR (1) FR935839A (fr)
GB (1) GB631336A (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2292885A (en) * 1941-05-09 1942-08-11 Bell Telephone Labor Inc Rochelle salt piezoelectric crystal apparatus
US2292886A (en) * 1941-05-22 1942-08-11 Bell Telephone Labor Inc Rochelle salt piezoelectric crystal apparatus
BE471729A (fr) * 1946-04-05

Also Published As

Publication number Publication date
ES176776A1 (es) 1947-03-16
US2460520A (en) 1949-02-01
CH258971A (fr) 1948-12-31
GB631336A (en) 1949-11-01

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