发明名称 |
Piezoceramic transducer and method for manufacturing the same |
摘要 |
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. |
申请公布号 |
US8410669(B2) |
申请公布日期 |
2013.04.02 |
申请号 |
US20100970023 |
申请日期 |
2010.12.16 |
申请人 |
YU CHENG-SHENG;CHUNG WU-SONG;CHINA STEEL CORPORATION |
发明人 |
YU CHENG-SHENG;CHUNG WU-SONG |
分类号 |
H01L41/047 |
主分类号 |
H01L41/047 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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