FR938529A - Cristaux piézoélectriques - Google Patents

Cristaux piézoélectriques

Info

Publication number
FR938529A
FR938529A FR938529DA FR938529A FR 938529 A FR938529 A FR 938529A FR 938529D A FR938529D A FR 938529DA FR 938529 A FR938529 A FR 938529A
Authority
FR
France
Prior art keywords
piezoelectric crystals
piezoelectric
crystals
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
Priority claimed from US497883A external-priority patent/US2450010A/en
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of FR938529A publication Critical patent/FR938529A/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)
  • Crystals, And After-Treatments Of Crystals (AREA)
FR938529D 1943-08-09 1946-12-17 Cristaux piézoélectriques Expired FR938529A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US497883A US2450010A (en) 1943-08-09 1943-08-09 Piezoelectric crystal apparatus
US637127A US2484635A (en) 1943-08-09 1945-12-24 Piezoelectric crystal apparatus

Publications (1)

Publication Number Publication Date
FR938529A true FR938529A (fr) 1948-10-18

Family

ID=27052640

Family Applications (1)

Application Number Title Priority Date Filing Date
FR938529D Expired FR938529A (fr) 1943-08-09 1946-12-17 Cristaux piézoélectriques

Country Status (4)

Country Link
US (1) US2484635A (fr)
BE (1) BE472576A (fr)
FR (1) FR938529A (fr)
GB (3) GB641469A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2680720A (en) * 1944-06-08 1954-06-08 Clevite Corp Piezoelectric crystal body comprised of rubidium compound
USRE25413E (en) * 1961-07-05 1963-07-09 Temperature xc
US3461408A (en) * 1967-02-09 1969-08-12 Bell Telephone Labor Inc Oriented litao3 crystal and devices using same
US3694676A (en) * 1971-03-17 1972-09-26 Zenith Radio Corp Shear mode piezoelectric filter
IT1086630B (it) * 1976-03-19 1985-05-28 Pentel Kk Punta per penna a sfera e procedimento di produzione

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2303375A (en) * 1941-06-10 1942-12-01 Bell Telephone Labor Inc Rochelle salt piezoelectric crystal apparatus
GB569285A (en) * 1942-11-21 1945-05-16 Patelhold Patentverwertung Piezo-electric device
US2373445A (en) * 1943-01-18 1945-04-10 Brush Dev Co Piezoelectric device

Also Published As

Publication number Publication date
GB641471A (en) 1950-08-16
GB641470A (en) 1950-08-16
US2484635A (en) 1949-10-11
GB641469A (en) 1950-08-16
BE472576A (fr)

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