Surface acoustic wave device

Details Surface acoustic wave device Surface acoustic wave device

1996-04-09

1998-10-06

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310348, H03H 925, H01L 4108

Patent

active

058181458

ABSTRACT:
A surface acoustic wave device of the present invention includes piezo-electric substrates 1 and 2 each having one surface formed with interdigital electrodes 12A, 12B, for transmission and receiving of surface acoustic waves, are received in a casing including a stem 4, a seal ring 9 and a cover plate 5, etc. The piezo-electric substrates 1 and 2 are arranged such that the one surfaces thereof face each other with a predetermined space therebetween and electrically conductive members 3 are disposed between the piezo-electric substrates 1 and 2. The electrically conductive members 3 may be gold bumps, solder bumps, metal balls of such as solder or copper, electrically conductive adhesive members or electrically conductive rubber members, etc. The surface acoustic wave device is applicable to such as filters and featured by having small mounting area and easiness of manufacture.

REFERENCES:
patent: 4295102 (1981-10-01), Schmidt et al.
patent: 4736128 (1988-04-01), Takoshima et al.
patent: 4990814 (1991-02-01), Tanski et al.
patent: 5252882 (1993-10-01), Yatsuda
patent: 5281883 (1994-01-01), Ikata et al.
patent: 5416447 (1995-05-01), Andres et al.
patent: 5459368 (1995-10-01), Onishi et al.

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