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1. 发明授权

US5325012A Bonded type piezoelectric apparatus, method for manufacturing the same and bonded type piezoelectric element 失效
标题翻译：接合型压电装置及其制造方法和接合型压电元件
公开(公告)号：US5325012A
公开(公告)日：1994-06-28
申请号：US837977
申请日：1992-02-20
申请人： Ichiya Sato , Takao Yoneyama , Hisanori Okamura , Satoshi Kokura , Minoru Yanagibashi
发明人： Ichiya Sato , Takao Yoneyama , Hisanori Okamura , Satoshi Kokura , Minoru Yanagibashi
IPC分类号： H01L41/09 , H01L41/08
CPC分类号： H01L41/29 , H01L41/313
摘要： The features of the present invention are 1) to apply metallization on the bonding surface of a piezoelectric ceramic with a metal likely to react with the piezoelectric ceramic material, 2) when the piezoelectric ceramic material is soldered on the bonding surface, to apply metallization with a metal likely to react with the solder material, 3) to provide between the metallizing layers formed in 1) and 2) a metallizing layer including metal which prevents reaction between the metals and their diffusion, 4) to use a mounting member for the piezoelectric ceramic which has substantially the same thermal expansion coefficient as the piezoelectric ceramic in non-polarization condition and 5) to solder in the non-polarization condition and thereafter to polarize. As the result, a bonded type piezoelectric apparatus with a high reliability or with a broad application temperature range near from the absolute zero temperature to the Curie point of the piezoelectric element, and a method of manufacturing the same are provided.
摘要翻译：本发明的特征是1）在压电陶瓷的接合面上施加金属化，其中金属可能与压电陶瓷材料发生反应的金属，2）当将压电陶瓷材料焊接在接合表面上时，可能与焊料反应的金属，3）在1）中形成的金属化层和2）包含金属的金属化层，以防止金属与其扩散之间的反应，4）使用用于压电的安装构件陶瓷，其在非极化条件下具有与压电陶瓷基本相同的热膨胀系数，以及5）在非极化状态下焊接，之后进行极化。结果，提供了一种具有高可靠性或广泛应用温度范围接近压电元件的绝对零温度到居里点的粘合型压电装置及其制造方法。

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