JPS5922519U

JPS5922519U - surface acoustic wave resonator

Info

Publication number: JPS5922519U
Application number: JP11340582U
Authority: JP
Inventors: 越野　昌芳; 山路　信機; 山下　清文
Original assignee: 株式会社東芝
Priority date: 1982-07-28
Filing date: 1982-07-28
Publication date: 1984-02-10

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の弾性表面波共振子の模式ｉ、第２図は本
考案の一実施例の弾性表面波共振子の模式図、第３図は
本考案の弾性表面波共振子をステムに取着した他の実施
例の斜視図である。 −１・・・圧電性基板、２・・・インターディジタル電
極、２０・・・アルミニウム膜、５４・・・リード線、
４６・・・ステムアースピン。釘ね補正　昭５８−９．１２実用新案登録請求の範囲を次のように補正するｉｏ実用
新案登録請求の範囲　　− （１）　　圧電性基板上の一主面にインターディジタル
電極および前記インターディジタル電極をはさ−−−む
ように形成された！数の反射電極とを備えた弾性表面共
振子において、前記−主面上の前記インターディジタル
電極より所定の間隔を隔て。た部分で且つ複板の前記反射電極とを除いた部分を導体
膜を被覆したことを特徴とする弾性表面波共振子。・（２）前記インターディジタル電極と前記導体膜−との
材質１よ同１であることを特徴とする実用新案登録請求
の範囲第１項記載の断性表面波共振子。Fig. 1 is a schematic diagram of a conventional surface acoustic wave resonator, Fig. 2 is a schematic diagram of a surface acoustic wave resonator according to an embodiment of the present invention, and Fig. 3 is a schematic diagram of a surface acoustic wave resonator of the present invention with a stem. FIG. 6 is a perspective view of another installed embodiment; -1... Piezoelectric substrate, 2... Interdigital electrode, 20... Aluminum film, 54... Lead wire,
46... Stem earth pin. Nail correction September 12, 1982 The scope of the io utility model registration claims is amended as follows - (1) Interdigital electrodes and the interdigital electrodes on one main surface of the piezoelectric substrate It was formed in such a way that it holds...! an elastic surface resonator comprising a plurality of reflective electrodes spaced apart by a predetermined distance from the interdigital electrodes on the principal surface; A surface acoustic wave resonator characterized in that a portion of the multi-plate except for the reflective electrode is coated with a conductive film. (2) The interdigitated surface wave resonator according to claim 1, wherein the material of the interdigital electrode and the conductive film are the same as those of the material 1.

Claims

[Scope of utility model registration request]

(1) In a surface acoustic wave resonator including an interdigital electrode i and a plurality of reflective electrodes formed to sandwich the interdigital electrode jLz electrode on one main surface on the EE conductive i1f, A surface acoustic wave resonator characterized in that a portion spaced apart from the interdigital electrode by a predetermined distance and excluding a plurality of the reflective electrodes is covered with a conductive film.

(2) Elasticity β /3θJ , 30t , ; r 2 according to claim 1 of the utility model registration claim, characterized in that the conductor film is grounded all at once.

(3) The surface acoustic wave resonator according to claim 1, wherein the interdigital electrode and the conductor film are made of the same material.