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FR937869A - Systèmes de cristaux piézoélectriques - Google Patents

Systèmes de cristaux piézoélectriques

Info

Publication number
FR937869A
FR937869A FR937869DA FR937869A FR 937869 A FR937869 A FR 937869A FR 937869D A FR937869D A FR 937869DA FR 937869 A FR937869 A FR 937869A
Authority
FR
France
Prior art keywords
piezoelectric crystal
crystal systems
systems
piezoelectric
crystal
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 FR937869A publication Critical patent/FR937869A/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 elements; 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 elements; 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)
FR937869D 1946-03-28 1946-12-18 Systèmes de cristaux piézoélectriques Expired FR937869A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US657885A US2454328A (en) 1946-03-28 1946-03-28 Piezoelectric crystal apparatus

Publications (1)

Publication Number Publication Date
FR937869A true FR937869A (fr) 1948-08-30

Family

ID=24639055

Family Applications (1)

Application Number Title Priority Date Filing Date
FR937869D Expired FR937869A (fr) 1946-03-28 1946-12-18 Systèmes de cristaux piézoélectriques

Country Status (4)

Country Link
US (1) US2454328A (fr)
BE (1) BE469891A (fr)
FR (1) FR937869A (fr)
GB (1) GB631346A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE806547C (de) * 1948-03-02 1951-06-14 Machf Reineveld Nv Trockenapparat, besonders fuer Waesche

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2309467A (en) * 1941-07-25 1943-01-26 Bell Telephone Labor Inc Rochelle salt piezoelectric crystal apparatus

Also Published As

Publication number Publication date
BE469891A (fr)
US2454328A (en) 1948-11-23
GB631346A (en) 1949-11-01

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