GB2091939B - Piezoelectric filters and methods of making same - Google Patents

Piezoelectric filters and methods of making same

Info

Publication number
GB2091939B
GB2091939B GB8136383A GB8136383A GB2091939B GB 2091939 B GB2091939 B GB 2091939B GB 8136383 A GB8136383 A GB 8136383A GB 8136383 A GB8136383 A GB 8136383A GB 2091939 B GB2091939 B GB 2091939B
Authority
GB
United Kingdom
Prior art keywords
methods
making same
piezoelectric filters
piezoelectric
filters
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
GB8136383A
Other languages
English (en)
Other versions
GB2091939A (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.)
Toko Inc
Original Assignee
Toko 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 Toko Inc filed Critical Toko Inc
Publication of GB2091939A publication Critical patent/GB2091939A/en
Application granted granted Critical
Publication of GB2091939B publication Critical patent/GB2091939B/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
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • 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
    • H03H9/05—Holders or supports
    • H03H9/10—Mounting in enclosures
    • H03H9/1007—Mounting in enclosures for bulk acoustic wave [BAW] devices
    • H03H9/1014—Mounting in enclosures for bulk acoustic wave [BAW] devices the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the BAW device
    • H03H9/1028—Mounting in enclosures for bulk acoustic wave [BAW] devices the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the BAW device the BAW device being held between spring terminals
    • 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
    • H03H9/05—Holders or supports
    • H03H9/0504—Holders or supports for bulk acoustic wave devices

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
GB8136383A 1980-12-10 1981-12-02 Piezoelectric filters and methods of making same Expired GB2091939B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55173964A JPS5797717A (en) 1980-12-10 1980-12-10 Piezoelectric filter and its production

Publications (2)

Publication Number Publication Date
GB2091939A GB2091939A (en) 1982-08-04
GB2091939B true GB2091939B (en) 1984-06-27

Family

ID=15970296

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8136383A Expired GB2091939B (en) 1980-12-10 1981-12-02 Piezoelectric filters and methods of making same

Country Status (4)

Country Link
JP (1) JPS5797717A (enrdf_load_stackoverflow)
KR (1) KR860001042B1 (enrdf_load_stackoverflow)
DE (1) DE3148389A1 (enrdf_load_stackoverflow)
GB (1) GB2091939B (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4484158A (en) * 1982-07-07 1984-11-20 General Electric Company Monolithic crystal filter and method of manufacturing same
JPS59189713A (ja) * 1983-04-11 1984-10-27 Toko Inc 発振子およびその製造方法
JP2001036376A (ja) 1999-07-23 2001-02-09 Murata Mfg Co Ltd 圧電共振子及び圧電部品

Also Published As

Publication number Publication date
JPS6328364B2 (enrdf_load_stackoverflow) 1988-06-08
KR860001042B1 (ko) 1986-07-28
KR830008555A (ko) 1983-12-10
JPS5797717A (en) 1982-06-17
DE3148389A1 (de) 1982-06-24
GB2091939A (en) 1982-08-04

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Legal Events

Date Code Title Description
711A Proceeding under section 117(1) patents act 1977
PE20 Patent expired after termination of 20 years

Effective date: 20011201