GB674895A - Improvements in or relating to piezo-electric crystals - Google Patents

Improvements in or relating to piezo-electric crystals

Info

Publication number
GB674895A
GB674895A GB13271/49A GB1327149A GB674895A GB 674895 A GB674895 A GB 674895A GB 13271/49 A GB13271/49 A GB 13271/49A GB 1327149 A GB1327149 A GB 1327149A GB 674895 A GB674895 A GB 674895A
Authority
GB
United Kingdom
Prior art keywords
axis
degrees
face
piezo
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
GB13271/49A
Other languages
English (en)
Inventor
Rudolf 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 GB674895A publication Critical patent/GB674895A/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 devices; 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)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
GB13271/49A 1949-05-18 1949-05-18 Improvements in or relating to piezo-electric crystals Expired GB674895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB295226X 1949-05-18

Publications (1)

Publication Number Publication Date
GB674895A true GB674895A (en) 1952-07-02

Family

ID=10292874

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13271/49A Expired GB674895A (en) 1949-05-18 1949-05-18 Improvements in or relating to piezo-electric crystals

Country Status (4)

Country Link
BE (1) BE495709A (sv)
CH (1) CH295226A (sv)
FR (1) FR1018994A (sv)
GB (1) GB674895A (sv)

Also Published As

Publication number Publication date
BE495709A (sv)
CH295226A (de) 1953-12-15
FR1018994A (fr) 1953-01-15

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