Surface acoustic wave device and method of manufacturing

Details Surface acoustic wave device and method of manufacturing Surface acoustic wave device and method of manufacturing

1980-02-12

1981-09-22

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Delay lines including elastic surface wave propagation means

29 2535, 310313R, 310340, 310348, 333151, 333194, H03H 905, H03H 909, H03H 910, H03H 9145

Patent

active

042912857

ABSTRACT:
A transducer region and lead-out electrodes connected to the transducer region are formed on one main surface of a surface acoustic wave substrate and a sheet having a thickness directionally conductive property and a plane directionally insulating property is layered on the one main surface of the substrate through a spacer. The spacer achieves a function for forming a necessary gap in the transducer region between the sheet and the substrate and a function for adhering the sheet onto the substrate. The lead-out terminals are connected through the sheet to the lead-out electrodes by virtue of the thickness directional conductivity of the sheet.

REFERENCES:
patent: 3872331 (1975-03-01), Falco
patent: 3885173 (1975-05-01), Lee

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