Acoustic wave devices employing surface skimming bulk waves

Details Acoustic wave devices employing surface skimming bulk waves Acoustic wave devices employing surface skimming bulk waves

H - Electricity

04

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349/67.8

H04R 17/00 (2006.01) H01L 41/00 (2006.01) H03H 9/00 (2006.01) H03H 9/02 (2006.01) H03H 9/30 (2006.01) H03H 9/38 (2006.01)

Patent

CA 1108746

ABSTRACT An acoustic wave device employing surface skimming bulk waves comprises a piezo electric substrate having a flat surface which carries an input transducer and an output transducer for respectively launching and receiving acoustic waves into and from the bulk of the substrate. The substrate may be of quartz, lithium tantalate, or lithium niobate and has the flat surface orientated so that a surface skimming bulk wave is launched without generation of surface acoustic waves.

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