JPS5484991A - Crystal vibrator - Google Patents

Crystal vibrator

Info

Publication number
JPS5484991A
JPS5484991A JP13967077A JP13967077A JPS5484991A JP S5484991 A JPS5484991 A JP S5484991A JP 13967077 A JP13967077 A JP 13967077A JP 13967077 A JP13967077 A JP 13967077A JP S5484991 A JPS5484991 A JP S5484991A
Authority
JP
Japan
Prior art keywords
enclosure
outside
air flowing
junction materials
protrusion
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.)
Pending
Application number
JP13967077A
Other languages
Japanese (ja)
Inventor
Hiroyuki Fujii
Masatoshi Kobayashi
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.)
Matsushima Kogyo KK
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Matsushima Kogyo KK
Seiko Epson Corp
Suwa Seikosha KK
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 Matsushima Kogyo KK, Seiko Epson Corp, Suwa Seikosha KK filed Critical Matsushima Kogyo KK
Priority to JP13967077A priority Critical patent/JPS5484991A/en
Publication of JPS5484991A publication Critical patent/JPS5484991A/en
Pending 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
    • H03H9/05—Holders; Supports
    • H03H9/10—Mounting in enclosures
    • H03H9/1007—Mounting in enclosures for bulk acoustic wave [BAW] devices
    • H03H9/1035—Mounting in enclosures for bulk acoustic wave [BAW] devices the enclosure being defined by two sealing substrates sandwiching the piezoelectric layer of the BAW device

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

PURPOSE:To improve work efficiency and enclosure reliability by welding the outside circumference par part of a flat-type case with junction materials and melting locally a part linking with outside air and performing vacuum enclosure. CONSTITUTION:Crystal vibrator piece 7 is held between cases 1 and 8, and they are joined to each other by junction materials 3 to keep airtightness. A part of the enclosure face is provided with no junction materials to generate minute air flowing part(a gap of approximately 10mu) 9 to the package outside. The outside part of the air flowing part is provided with protrusions 10 in the plane direction which are extended from case 8 and vibrator piece respectively. Protrusion 10 is formed in a small cubic volume. Protrusion 10 is melted instantaneously and locally in vacuum to close minute air flowing hole 9, thereby enclosing as shown in 11. In this method, gas which flows into the package is little and has no influence on the vibrator, and solder supply is needless, so that work efficiency and enclosure reliability can be improved.
JP13967077A 1977-11-21 1977-11-21 Crystal vibrator Pending JPS5484991A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13967077A JPS5484991A (en) 1977-11-21 1977-11-21 Crystal vibrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13967077A JPS5484991A (en) 1977-11-21 1977-11-21 Crystal vibrator

Publications (1)

Publication Number Publication Date
JPS5484991A true JPS5484991A (en) 1979-07-06

Family

ID=15250678

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13967077A Pending JPS5484991A (en) 1977-11-21 1977-11-21 Crystal vibrator

Country Status (1)

Country Link
JP (1) JPS5484991A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57152209A (en) * 1981-03-16 1982-09-20 Seiko Epson Corp Container for quartz oscillator
JP2017059918A (en) * 2015-09-15 2017-03-23 リバーエレテック株式会社 Crystal resonator and manufacturing method therefor
JP2019205203A (en) * 2019-08-21 2019-11-28 リバーエレテック株式会社 Manufacturing method for crystal resonator
JP2020005281A (en) * 2019-08-21 2020-01-09 リバーエレテック株式会社 Crystal oscillator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57152209A (en) * 1981-03-16 1982-09-20 Seiko Epson Corp Container for quartz oscillator
JP2017059918A (en) * 2015-09-15 2017-03-23 リバーエレテック株式会社 Crystal resonator and manufacturing method therefor
JP2019205203A (en) * 2019-08-21 2019-11-28 リバーエレテック株式会社 Manufacturing method for crystal resonator
JP2020005281A (en) * 2019-08-21 2020-01-09 リバーエレテック株式会社 Crystal oscillator

Similar Documents

Publication Publication Date Title
GB1227179A (en)
GB830471A (en) Improvements in metal welding methods
JPS5484991A (en) Crystal vibrator
ES8704666A1 (en) Process and device for producing a plasma arc.
GB973652A (en) Electric arc torch
JPS5661820A (en) Quartz oscillator
GB843316A (en) Improvements in or relating to sealing windows for wave-guides
JPS5250188A (en) Quartz oscillator-element
GB858892A (en) Improvements in or relating to processes for soldering together two materials which when in combination exhibit thermoelectric properties
JPS5366393A (en) Manufacture of crystal oscillator
JPS5646577A (en) Multilayer thermionic element and manufacture thereof
JPS5484990A (en) Crystal vibrator
GB1015540A (en) Electric arc torch
JPS5395589A (en) Semiconductor light amplifying device
JPS5384595A (en) Piezo electric oscillating unit
JPS5297183A (en) Production of air tight terminal
JPS55162251A (en) Lead frame
JPS54160540A (en) Bonding of aluminium wire
JPS53142340A (en) Manufacture of swing arm for autobicycle
JPS5320860A (en) Hermetic sealing method of electronic parts
JPS53144659A (en) Gun-sealing jig for cathode-ray tube manufacture
JPS53101291A (en) Sealing method of oscillator package
JPS5422197A (en) Manufacture of gas laser tube
JPS5636144A (en) Electronic device
ES358218A1 (en) Method of sealing semi-conductor assemblies