GB1388997A - Quartz crystals - Google Patents

Quartz crystals

Info

Publication number
GB1388997A
GB1388997A GB4806373A GB4806373A GB1388997A GB 1388997 A GB1388997 A GB 1388997A GB 4806373 A GB4806373 A GB 4806373A GB 4806373 A GB4806373 A GB 4806373A GB 1388997 A GB1388997 A GB 1388997A
Authority
GB
United Kingdom
Prior art keywords
ratio
oct
shear mode
thickness
equal
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
GB4806373A
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 GB1388997A publication Critical patent/GB1388997A/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
    • H03H9/02157—Dimensional parameters, e.g. ratio between two dimension parameters, length, width or thickness
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
    • H03H9/19—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator consisting of quartz

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
GB4806373A 1972-10-19 1973-10-16 Quartz crystals Expired GB1388997A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29908472A 1972-10-19 1972-10-19

Publications (1)

Publication Number Publication Date
GB1388997A true GB1388997A (en) 1975-04-03

Family

ID=23153240

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4806373A Expired GB1388997A (en) 1972-10-19 1973-10-16 Quartz crystals

Country Status (10)

Country Link
US (1) US3792294A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS49100991A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE806106A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA968463A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2351665B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2204062B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1388997A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT994774B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL7314161A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE380934B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1401042A (en) * 1972-05-30 1975-07-16 Suisse Horlogerie Quartz crystal resonator
US4167686A (en) * 1973-12-21 1979-09-11 Hitohiro Fukuyo Miniaturized at-cut piezoelectric crystal resonator
DE2641571B1 (de) * 1976-09-15 1977-06-08 Siemens Ag Als obertonquarz verwendeter dickenscherungsschwinger
JPS53118391A (en) * 1977-03-25 1978-10-16 Nippon Denpa Kogyo Kk Piezooelectric resonator
JPS5479581A (en) * 1977-12-07 1979-06-25 Seiko Instr & Electronics Ltd Thickness-width slide crystal vibrator
FR2426338A1 (fr) * 1978-05-19 1979-12-14 Seiko Instr & Electronics Resonateur a quartz rectangulaire en coupe at
JPS5537052A (en) * 1978-09-06 1980-03-14 Seiko Instr & Electronics Ltd At-cut crystal oscillator
JPS5546633A (en) * 1978-09-28 1980-04-01 Seiko Instr & Electronics Ltd Thickness-sliding inflection crystal vibrator
DE2847944A1 (de) * 1978-11-04 1980-05-14 Bosch Gmbh Robert Resonator aus einer piezoelektrischen kristallscheibe
JPS5912584Y2 (ja) * 1979-09-11 1984-04-16 東京電波株式会社 水晶感温トランスジユ−サ
US4357554A (en) * 1980-05-21 1982-11-02 The United States Of America As Represented By The Secretary Of The Army Hexagonal quartz resonator
EP0048689B1 (fr) 1980-08-29 1985-01-30 Asulab S.A. Thermomètre à quartz
US4525647A (en) * 1983-12-02 1985-06-25 Motorola, Inc. Dual frequency, dual mode quartz resonator
JPS6098928U (ja) * 1984-09-27 1985-07-05 日本電波工業株式会社 圧電振動子
JPH0520015Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1985-08-12 1993-05-26
US4713572A (en) * 1986-06-06 1987-12-15 Accuray Corporation Ultrasonic transducers for on-line applications
US6469423B2 (en) * 1993-10-18 2002-10-22 Seiko Epson Corporation Rectangular at-cut quartz element, quartz resonator, quartz resonator unit and quartz oscillator, and method of producing quartz element
JP2016152477A (ja) * 2015-02-17 2016-08-22 セイコーエプソン株式会社 振動子、振動デバイス、発振器、電子機器、および移動体

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2218200A (en) * 1934-06-02 1940-10-15 Bell Telephone Labor Inc Piezoelectric apparatus
US2169301A (en) * 1937-10-15 1939-08-15 Bell Telephone Labor Inc Wave filter
US2306909A (en) * 1939-06-09 1942-12-29 Bell Telephone Labor Inc Piezoelectric crystal apparatus
US2304760A (en) * 1940-01-31 1942-12-08 Rca Corp Piezoelectric crystal element
US2373431A (en) * 1943-03-30 1945-04-10 Bell Telephone Labor Inc Electric wave filter
US2423061A (en) * 1944-04-29 1947-06-24 Premier Crystal Lab Inc Piezoelectric device and method of manufacture
US2574257A (en) * 1947-01-11 1951-11-06 Cambridge Thermionic Corp Method for manufacturing piezoelectric crystals free of conflicting modes of vibration
US3334251A (en) * 1964-10-08 1967-08-01 Bell Telephone Labor Inc Piezoelectric quartz elements
FR1576402A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1968-04-03 1969-06-23

Also Published As

Publication number Publication date
BE806106A (fr) 1974-02-01
DE2351665A1 (de) 1974-05-02
IT994774B (it) 1975-10-20
FR2204062A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-05-17
SE380934B (sv) 1975-11-17
DE2351665B2 (de) 1974-11-14
CA968463A (en) 1975-05-27
NL7314161A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-04-23
US3792294A (en) 1974-02-12
JPS49100991A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-09-24
FR2204062B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-09-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees