Piezoceramic transducer and method for manufacturing the same

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United States of America Patent

PATENT NO 8410669
APP PUB NO 20120074819A1
SERIAL NO

12970023

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Abstract

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A piezoceramic transducer (PZT transducer) and a method for manufacturing the same are provided. The PZT transducer includes a piezoceramic substrate and an electrode unit. The piezoceramic substrate has a first surface and a second surface opposite the first surface, and has a mechanical quality factor (Qm) greater than 1400. The electrode unit has a first electrode and a second electrode. The first electrode is disposed on the first surface and has a first diameter. The second electrode covers the second surface and extends to cover a part of the surface at a periphery of the first surface, and the part of the second electrode covering the second surface has a second diameter. The ratio of the first diameter to the second diameter is 0.498 to 0.502. The PZT transducer has a large mist amount and a long service life.

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Patent Owner(s)

Patent OwnerAddress
CHINA STEEL CORPORATION1 CHUNG KANG ROAD HSIAO KANG KAOHSIUNG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chung, Wu-Song Koahsiung, TW 1 1
Yu, Cheng-Sheng Kaohsiung, TW 3 6

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