Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2011-05-10
2011-05-10
SanMartin, J. (Department: 2837)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S31300R, C310S31300R, C333S195000
Reexamination Certificate
active
07939987
ABSTRACT:
An acoustic wave device includes electrodes carried on a surface of a piezoelectric material and an array of reflective obstacles such that elastic energy resulting from a piezoelectric effect is preferentially directed along a primary wave propagation path. The array of reflective obstacles are positioned generally parallel to the surface of the piezoelectric material and redirect acoustic waves typically reflected in other than a desirable direction to along a desired direction generally along the primary propagation path. The obstacles improve performance for SAW and BAW devices by effecting reflected energy and suppressing spurious modes.
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Abbott Benjamin P.
Aigner Robert
Gratier Julien
Kook Taeho
Solal Marc
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
SanMartin J.
Triquint Semiconductor, Inc.
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