发明名称 PIEZOELECTRIC ELEMENT, AND PIEZOELECTRIC VIBRATION DEVICE, PORTABLE TERMINAL, ACOUSTIC GENERATOR, ACOUSTIC GENERATION DEVICE AND ELECTRONIC DEVICE PROVIDED WITH THE SAME
摘要 <p>There are provided a piezoelectric element in which the peeling of a surface electrode is suppressed, and a piezoelectric vibrating device, a portable terminal, an acoustic generator, an acoustic generating device and an electronic apparatus including the same. A piezoelectric actuator includes a piezoelectric element including a plate-shaped stacked body including inner electrodes and piezoelectric layers laminated, a surface electrode disposed on one of main surfaces of the stacked body, the surface electrode being electrically connected to the inner electrodes. The surface electrode has a first area and a second area. The first area is an area mainly containing silver, and the second area is an area mainly containing silver and palladium and disposed so as to contact a piezoelectric layer.</p>
申请公布号 KR20140080458(A) 申请公布日期 2014.06.30
申请号 KR20137029472 申请日期 2013.09.30
申请人 KYOCERA CORPORATION 发明人 SUENAGA HIROSHI
分类号 H01L41/047 主分类号 H01L41/047
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