JPS5772413A - Surface acoustic wave filter - Google Patents

Surface acoustic wave filter

Info

Publication number
JPS5772413A
JPS5772413A JP14859480A JP14859480A JPS5772413A JP S5772413 A JPS5772413 A JP S5772413A JP 14859480 A JP14859480 A JP 14859480A JP 14859480 A JP14859480 A JP 14859480A JP S5772413 A JPS5772413 A JP S5772413A
Authority
JP
Japan
Prior art keywords
case
stem
hermetically
adhere
fitted
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
JP14859480A
Other languages
Japanese (ja)
Inventor
Hideki Omori
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP14859480A priority Critical patent/JPS5772413A/en
Publication of JPS5772413A publication Critical patent/JPS5772413A/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
    • H03H9/1064—Mounting in enclosures for surface acoustic wave [SAW] devices
    • H03H9/1071—Mounting in enclosures for surface acoustic wave [SAW] devices the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the SAW device

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

PURPOSE:To prevent airtightness from being damaged, by opening the inside and the outside of an armoring vessel to each other when the adhesive by which a stem and a resin case adhere to each other hermetically is heated and hardened. CONSTITUTION:In case of molding of a box type resin case 15' which is to be caused to adhere to a stem 7 hermetically by an adhesive 17, an angular through window 20 is formed in the left upper part on the face opposite to a filter element 1. A metallic plate 21 having a through-small hole 22 in a part which faces to the front of the filter element 1 and is exposed to the window 20 is inserted and molded on the inside face of the case 15'. An earth plate 2 with the filter element 1 fitted and respective lead terminals 3-6 are fitted to the lower aperture part of the case 15', and the case 15' is fitted to the stem 7, and they are caused to adhere to each other hermetically by the adhesive 17 such as an epoxy resin. Next, the through-small hole 22 is sealed hermetically by a solder 24 after inert gas is filled up in an armoring vessel consisting of the case 15' and the stem 7, thus constituting a surface acoustic wave filter 18'.
JP14859480A 1980-10-23 1980-10-23 Surface acoustic wave filter Pending JPS5772413A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14859480A JPS5772413A (en) 1980-10-23 1980-10-23 Surface acoustic wave filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14859480A JPS5772413A (en) 1980-10-23 1980-10-23 Surface acoustic wave filter

Publications (1)

Publication Number Publication Date
JPS5772413A true JPS5772413A (en) 1982-05-06

Family

ID=15456238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14859480A Pending JPS5772413A (en) 1980-10-23 1980-10-23 Surface acoustic wave filter

Country Status (1)

Country Link
JP (1) JPS5772413A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58176138U (en) * 1982-05-17 1983-11-25 福田　千蔵 law frame block
JPS61234612A (en) * 1985-04-10 1986-10-18 Matsushita Electric Ind Co Ltd Surface wave device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4998575A (en) * 1972-12-27 1974-09-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4998575A (en) * 1972-12-27 1974-09-18

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58176138U (en) * 1982-05-17 1983-11-25 福田　千蔵 law frame block
JPS61234612A (en) * 1985-04-10 1986-10-18 Matsushita Electric Ind Co Ltd Surface wave device

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