Surface acoustic wave device

Details Surface acoustic wave device Surface acoustic wave device

1989-12-22

1991-02-12

Jordan, Charles T.

Communications, electrical: acoustic wave systems and devices

Signal transducers

310313R, 333154, 333151, 333194, H04R 1700

Patent

active

049930001

ABSTRACT:
A surface acoustic wave device according to the present invention can be molded surely with resin, leaving a free space over exciting portions and a propagating portion by disposing a recess portion formed over the exciting portions and the propagating portion on a piezoelectric substrate without using any metallic package.

REFERENCES:
patent: 3872331 (1975-03-01), Falco
patent: 4291285 (1981-09-01), Kadota
patent: 4315275 (1982-02-01), Bert et al.
patent: 4699682 (1987-10-01), Takishima
patent: 4757226 (1988-07-01), Mitsutska et al.

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