Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1989-11-13
1991-02-05
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310313D, H01L 4108
Patent
active
049908146
ABSTRACT:
A separated substrate acoustic charge transport device includes a surface acoustic wave (SAW) element fabricated on a piezoelectric substrate and an acoustic charge transport element fabricated on a separate semiconducting substrate. The substrates are separated by a small gap such that the evanescent electric field associated with the propagating SAW wave extends into a transport channel in the acoustic charge transport element to provide for longitudinal charge confinement and transport along the transport channel.
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Cullen Donald E.
Tanski William J.
Budd Mark O.
United Technologies Corporation
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