GB631345A - Improvements in piezoelectric crystal elements and apparatus - Google Patents

Improvements in piezoelectric crystal elements and apparatus

Info

Publication number
GB631345A
GB631345A GB7151/47A GB715147A GB631345A GB 631345 A GB631345 A GB 631345A GB 7151/47 A GB7151/47 A GB 7151/47A GB 715147 A GB715147 A GB 715147A GB 631345 A GB631345 A GB 631345A
Authority
GB
United Kingdom
Prior art keywords
length
march
axis
orientation
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
GB7151/47A
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 GB631345A publication Critical patent/GB631345A/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
    • 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)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Developing Agents For Electrophotography (AREA)
GB7151/47A 1946-03-28 1947-03-14 Improvements in piezoelectric crystal elements and apparatus Expired GB631345A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US657886A US2458615A (en) 1946-03-28 1946-03-28 Piezoelectric crystal apparatus

Publications (1)

Publication Number Publication Date
GB631345A true GB631345A (en) 1949-11-01

Family

ID=24639061

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7151/47A Expired GB631345A (en) 1946-03-28 1947-03-14 Improvements in piezoelectric crystal elements and apparatus

Country Status (7)

Country Link
US (1) US2458615A (enrdf_load_stackoverflow)
BE (1) BE470165A (enrdf_load_stackoverflow)
CH (1) CH263126A (enrdf_load_stackoverflow)
DE (1) DE832164C (enrdf_load_stackoverflow)
ES (1) ES177115A1 (enrdf_load_stackoverflow)
FR (1) FR938538A (enrdf_load_stackoverflow)
GB (1) GB631345A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2925502A (en) * 1956-12-21 1960-02-16 Philips Corp Piezo-electric quartz crystal of elongated shape

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
US2458615A (en) 1949-01-11
BE470165A (enrdf_load_stackoverflow)
ES177115A1 (es) 1947-04-16
DE832164C (de) 1952-02-21
FR938538A (fr) 1948-10-18
CH263126A (fr) 1949-08-15

Similar Documents

Publication Publication Date Title
GB631345A (en) Improvements in piezoelectric crystal elements and apparatus
GB631348A (en) Improvements in piezoelectric crystal elements and apparatus
GB631346A (en) Piezoelectric crystal elements and apparatus
GB632515A (en) Improvements in piezoelectric crystal elements and apparatus
GB650795A (en) Piezoelectric crystal elements
GB631336A (en) Improvements in piezoelectric crystals and apparatus
GB650796A (en) Piezoelectric crystal elements
GB655073A (en) Piezoelectric crystal bodies
GB656818A (en) Improvements in or relating to piezoelectric crystal plates
GB607500A (en) Improvements in and relating to piezoelectric apparatus
AU136468B2 (en) Piezoelectric crystal apparatus
CA445283A (en) Piezoelectric crystal apparatus
GB679023A (en) Improvements in or relating to piezo-electric crystals
AU136518B2 (en) Piezoelectric crystal apparatus
GB554963A (en) Rochelle salt piezoelectric crystal apparatus
GB1299056A (en) Piezoelectric extensional mode quartz crystal plate
AU620046A (en) Piezoelectric crystal apparatus
AU126121B2 (en) Improvements in or relating to bimorph piezoelectric crystals and crystal elements for use in acoustic appliances
AU131215B2 (en) Improvements in quartz crystals for example for oscillators
CA463925A (en) Piezoelectric crystal apparatus
CA462285A (en) Piezoelectric crystal apparatus
CA469992A (en) Piezoelectric crystal apparatus
CA463247A (en) Piezoelectric crystal apparatus
CA463248A (en) Piezoelectric crystal apparatus
CA464550A (en) Piezoelectric crystal apparatus