发明申请
- 专利标题: LAMINATED PIEZOELECTRIC ELEMENT AND PRODUCTION METHOD OF THE SAME
- 专利标题(中): 层压压电元件及其生产方法
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申请号: US11684275申请日: 2007-03-09
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公开(公告)号: US20070222340A1公开(公告)日: 2007-09-27
- 发明人: Hideya Sakamoto , Keisuke Itakura , Norimasa Sakamoto
- 申请人: Hideya Sakamoto , Keisuke Itakura , Norimasa Sakamoto
- 申请人地址: JP Tokyo
- 专利权人: TDK CORPORATION
- 当前专利权人: TDK CORPORATION
- 当前专利权人地址: JP Tokyo
- 优先权: JP2006-078130 20060322
- 主分类号: H01L41/187
- IPC分类号: H01L41/187 ; H01L41/083
摘要:
A laminated piezoelectric element capable of being sintered at low temperatures and high in piezoelectric properties is provided. The laminated piezoelectric element comprises a plurality of piezoelectric layers each comprising a composite oxide as a main constituent thereof and a plurality of internal electrode layers formed between the piezoelectric layers and containing Ag, wherein the piezoelectric layers are each comprised of a sintered body comprising the composite oxide, as a main constituent thereof, represented by (Pba-bMb)[(Zn1/3Nb2/3)xTiyZrz]O3 with the proviso that 0.96≦a≦1.03, 0≦b≦0.1, 0.05≦x≦0.15, 0.25≦y≦0.5, 0.35≦z≦0.6, x+y+z=1, and M represents at least one selected from Sr, Ca and Ba, and Ag in a content of 1.0% by weight or less (not inclusive of 0) in terms of Ag2O in relation to the main constituent.