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发明公开
CN107437929A 压电元件 无效 - 撤回

压电元件
摘要：
本发明提供一种压电元件。在具有利用引线(33)将基底(21)的第二配线电极(25)与晶片(11)的引出电极(15b)连接的构造的压电元件中，能够比以前降低由引线引起的应力。在引出电极(15b)的包含连接着引线(33)的部分(15x)且比所述部分(15x)稍宽的区域与晶片(11)之间，具备减小引线的应力的缓冲层(35)。缓冲层(35)包含被称作永久抗蚀剂的树脂。在引出电极(15a)的位置，利用硅酮系导电性粘接剂(31)将晶片(11)的与引线(33)连接的面的相反面与基底(21)的第一配线电极(23)连接。因此能够降低引线对压电振动片的应力，因而能够期待降低由应力引起的压电元件的特性劣化。
摘要（英）：

A piezoelectric device includes a piezoelectric vibrating piece, a base, a wire, a conductive adhesive, and a buffer layer. The piezoelectric vibrating piece includes excitation electrodes and extraction electrodes at both principal surfaces. The base includes the piezoelectric vibrating piece and a first wiring electrode and a second wiring electrode connected to the extraction electrodes. The wire connects the extraction electrode on a surface opposite to a side of the base among the extraction electrodes to one wiring electrode of the first wiring electrode and the second wiring electrode. The conductive adhesive connects the extraction electrode at the base side among the extraction electrodes to the other wiring electrode among the first wiring electrode and the second wiring electrode. The buffer layer reduces stress of the wire between the extraction electrode to which the wire is connected and the piezoelectric vibrating piece.

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