Method for processing robust acoustic reflectors

Details Method for processing robust acoustic reflectors Method for processing robust acoustic reflectors

1992-11-16

1994-07-12

Hall, Carl E.

Metal working

Piezoelectric device making

310313B, H01L 4122

Patent

active

053276264

ABSTRACT:
A reflector arrangement for an acoustic wave device comprises an acoustic wave propagating substrate, reflection elements having at least two different widths separated by at least one gap breadth disposed on the acoustic wave propagating substrate. The at least two different widths enhance reflected waves produced by the propagating acoustic wave in such a fashion as to achieve a total acoustic reflectivity which is independent of variations in width of the reflection elements.

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An article entitled "Modeling and Experimental Measurements of the Reflector Properties of SAW Metallic Gratings" by P. V. Wright, Proc. 1984 IEEE Ultrason. Symp., pp. 54-63.
An article entitled "Single-Phase, Unidirectional Transducer Design for Charge Transport Devices" by D. Penunuri, F. M. Fliegel, F. S. Hickenell and F. Y. Cho, 1990 Ultrasonics Symposium, 1990 IEEE, pp. 237-242.

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