JPS55158723A - Surface wave filter device - Google Patents

Surface wave filter device

Info

Publication number
JPS55158723A
JPS55158723A JP6607479A JP6607479A JPS55158723A JP S55158723 A JPS55158723 A JP S55158723A JP 6607479 A JP6607479 A JP 6607479A JP 6607479 A JP6607479 A JP 6607479A JP S55158723 A JPS55158723 A JP S55158723A
Authority
JP
Japan
Prior art keywords
electrodes
input
stem
filter element
output
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
JP6607479A
Other languages
Japanese (ja)
Inventor
Masao Nagarego
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6607479A priority Critical patent/JPS55158723A/en
Publication of JPS55158723A publication Critical patent/JPS55158723A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/08—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of resonators or networks using surface acoustic waves

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

PURPOSE:To improve the characteristics and then simplify the manufacture by attaching the external output line formed with the stem lead implanted to the stem via the conductive adhesive and at the desired position of the input/output electrode of the filter element to which the input and output electrodes are formed. CONSTITUTION:Input electrode 32 and output electrode 34 which are intermeshing each other are formed on one surface of piezoelectric substrate 31 made of the ceramics or the like. And input electrodes 321 and 322 plus output electrodes 341 and 342 are provided to electrodes 32 and 34 each, and then sound absorbing agent layer 35 is formed along part of electrodes 32 and 34 each. Thus the surface wave filter element is formed. Lead wire 41 of the filter element of such constitution is implanted to stem 42, and wire 41 is adhered directly to the desired position of electrodes 32 and 34 each by means of conducting adhesive layer 44 and via stem post 43. Thus the dust and the lint are prevented from sticking to electrodes 32 and 34. As a result, the occurrence can be avoided for the incomplete short and the defective frequency characteristics, thus facilitating the manufacture of the element.
JP6607479A 1979-05-30 1979-05-30 Surface wave filter device Pending JPS55158723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6607479A JPS55158723A (en) 1979-05-30 1979-05-30 Surface wave filter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6607479A JPS55158723A (en) 1979-05-30 1979-05-30 Surface wave filter device

Publications (1)

Publication Number Publication Date
JPS55158723A true JPS55158723A (en) 1980-12-10

Family

ID=13305325

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6607479A Pending JPS55158723A (en) 1979-05-30 1979-05-30 Surface wave filter device

Country Status (1)

Country Link
JP (1) JPS55158723A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63263813A (en) * 1987-04-21 1988-10-31 Nec Corp Surface acoustic wave element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63263813A (en) * 1987-04-21 1988-10-31 Nec Corp Surface acoustic wave element

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