基本信息:
- 专利标题： 초음파 발생용 압전 소자
- 专利标题（英）：Piezoelectric device
- 专利标题（中）：压电器件
- 申请号：KR1020120073239 申请日：2012-07-05
- 公开(公告)号：KR1020140006415A 公开(公告)日：2014-01-16
- 发明人： 이원경 , 이충국
- 申请人： (주) 래트론
- 申请人地址： 대전광역시 대덕구 대덕대로****번길 *** (신일동)
- 专利权人： (주) 래트론
- 当前专利权人： (주) 래트론
- 当前专利权人地址： 대전광역시 대덕구 대덕대로****번길 *** (신일동)
- 代理人： 정회환
- 主分类号： H01L41/02
- IPC分类号： H01L41/02 ; H01L41/16
摘要：
The present invention relates to a piezoelectric device. An embodiment of the piezoelectric device includes a piezoelectric ceramic part, a first electrode placed on the piezoelectric ceramic part and delivering a voltage applied from the outside to the piezoelectric ceramic part, a second electrode separated from the first electrode on the piezoelectric ceramic part and applying the voltage from the outside to the piezoelectric ceramic part, and a protective film placed on the first or second electrode and formed of a high molecule material. According to this, the protective film on the first electrode is formed of the high molecule material having excellent durability and chemical resistance so that corrosion is not easily made even when the protective film touches a foreign substances making corrosion in the first or second electrode. Therefore, a lifespan of the piezoelectric device can be extended and the operation efficiency of the piezoelectric device can be improved.
摘要（中）：
压电装置技术领域本发明涉及压电装置。 压电装置的一个实施例包括压电陶瓷部件，放置在压电陶瓷部件上的第一电极，并将从外部施加的电压传递到压电陶瓷部件，从压电陶瓷部件上的第一电极分离的第二电极， 从外部到压电陶瓷部分的电压，以及置于第一或第二电极上并由高分子材料形成的保护膜。 据此，第一电极上的保护膜由具有优异的耐久性和耐化学性的高分子材料形成，使得即使当保护膜与第一或第二电极中的异物形成腐蚀接触时也不容易发生腐蚀。 因此，能够延长压电元件的使用寿命，提高压电元件的工作效率。
公开/授权文献:
- KR101370387B1 초음파 발생용 압전 소자 公开/授权日：2014-03-17