Invention Grant
US09406866B2 Piezoelectric device with piezoelectric ceramic layer having AG segregated in voids in sintered body of perovskite composition
有权
具有AG的压电陶瓷层的压电元件在钙钛矿组成的烧结体的空隙中分离
- Patent Title: Piezoelectric device with piezoelectric ceramic layer having AG segregated in voids in sintered body of perovskite composition
- Patent Title (中): 具有AG的压电陶瓷层的压电元件在钙钛矿组成的烧结体的空隙中分离
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Application No.: US14360275Application Date: 2012-11-27
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Publication No.: US09406866B2Publication Date: 2016-08-02
- Inventor: Shinichiro Ikemi , Yutaka Doshida
- Applicant: TAIYO YUDEN CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: TAIYO YUDEN CO., LTD.
- Current Assignee: TAIYO YUDEN CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Law Office of Katsuhiro Arai
- Priority: JP2011-278228 20111220
- International Application: PCT/JP2012/080545 WO 20121127
- International Announcement: WO2013/094368 WO 20130627
- Main IPC: H01L41/187
- IPC: H01L41/187 ; C04B35/493 ; C04B35/626 ; H01L41/43 ; H01L41/047 ; C04B35/495 ; C04B35/491
Abstract:
A piezoelectric device is provided with: a piezoelectric ceramic layer that is obtained by firing a piezoelectric ceramic composition which contains a perovskite composition and an Ag component; and a conductor layer that sandwiches the piezoelectric ceramic layer, wherein Ag is segregated in voids in a sintered body of the perovskite composition in the piezoelectric ceramic layer. The piezoelectric ceramic composition preferably contains a perovskite composition which is represented by (Pba.Rex){Zrb.Tic,.(Ni1/3Nb2/3)d.(Zn1/3Nb2/3)e}O3 (wherein Re represents La and/or Nd, and a-e and x satisfy the following conditions 0.95≦a≦1.05, 0≦x≦0.05, 0.35≦b
Public/Granted literature
- US20140368090A1 PIEZOELECTRIC DEVICE AND PIEZOELECTRIC CERAMIC COMPOSITION Public/Granted day:2014-12-18
Information query
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