GB679023A - Improvements in or relating to piezo-electric crystals - Google Patents

Improvements in or relating to piezo-electric crystals

Info

Publication number
GB679023A
GB679023A GB16628/49A GB1662849A GB679023A GB 679023 A GB679023 A GB 679023A GB 16628/49 A GB16628/49 A GB 16628/49A GB 1662849 A GB1662849 A GB 1662849A GB 679023 A GB679023 A GB 679023A
Authority
GB
United Kingdom
Prior art keywords
axis
crystal
piezo
degrees
modes
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
GB16628/49A
Other languages
English (en)
Inventor
Rudolph Bechmann
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.)
Post Office
Original Assignee
Post Office
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 Post Office filed Critical Post Office
Publication of GB679023A publication Critical patent/GB679023A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Glass Compositions (AREA)
GB16628/49A 1949-06-22 1949-06-22 Improvements in or relating to piezo-electric crystals Expired GB679023A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB288572X 1949-06-22

Publications (1)

Publication Number Publication Date
GB679023A true GB679023A (en) 1952-09-10

Family

ID=10282277

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16628/49A Expired GB679023A (en) 1949-06-22 1949-06-22 Improvements in or relating to piezo-electric crystals

Country Status (4)

Country Link
BE (1) BE496534A (en:Method)
CH (1) CH288572A (en:Method)
FR (1) FR1020686A (en:Method)
GB (1) GB679023A (en:Method)

Also Published As

Publication number Publication date
BE496534A (en:Method)
CH288572A (de) 1953-01-31
FR1020686A (fr) 1953-02-09

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