Interface acoustic wave device
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United States of America Patent
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-
Apr 16, 2013
Grant Date -
Jun 9, 2011
app pub date -
Sep 17, 2009
filing date -
Sep 18, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to the field of acoustic wave devices, and particularly to that of transducers capable of operating at very high frequencies, from a few hundred MHz to several gigahertz, and its subject is more particularly an interface acoustic wave device including at least two substrates and a layer of ferroelectric material, the latter being contained between a first electrode and a second electrode and having first positive-polarization domains and second negative-polarization domains, the first and second domains being alternated, wherein the assembly constituted by the first electrode, the layer of ferroelectric material, and the second electrode is contained between a first substrate and a second substrate.
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