Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2007-12-11
2007-12-11
Schuberg, Darren (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
Reexamination Certificate
active
11212504
ABSTRACT:
An IDT electrode3, and an input electrode section5and an output electrode section6each connecting with the IDT electrode3are formed in a filter region on one main surface of a piezoelectric substrate2, and a semiconductor layer22is formed on the other main surface opposite to the one main surface of the piezoelectric substrate2. The semiconductor layer22makes it possible to prevent pyroelectric destruction in the device manufacturing process as well as to prevent out-of-band attenuation characteristics from being degraded.
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Funami Masayuki
Iioka Kiyohiro
Ito Motoki
Nagamine Shigehiko
Yokota Yuuko
Hogan & Hartson LLP
Kyocera Corporation
Rosenau Derek
Schuberg Darren
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