Surface acoustic wave device using beveled substrate

Details Surface acoustic wave device using beveled substrate Surface acoustic wave device using beveled substrate

1984-11-16

1986-07-29

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310313D, 333195, H01L 4106

Patent

active

046032754

ABSTRACT:
A surface acoustic device is formed by cutting a piezoelectric wafer having a number of input and output electrodes on one surface thereof such that at least one end of the device has a bevel adjacent the upper surface. The bevel suppresses the reflection of surface waves. The bevel may be formed by a rotating cutter having a central disc and opposite frustoconical cutters.

REFERENCES:
patent: 3559115 (1971-01-01), De Vries
patent: 3581248 (1971-05-01), De Vries
patent: 3582838 (1971-06-01), De Vries
patent: 3654500 (1972-04-01), Claiborne
patent: 4013983 (1977-03-01), Hartemann
patent: 4015448 (1977-09-01), Coussot

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