发明申请
- 专利标题: DIELECTRIC CERAMIC AND LAMINATED CERAMIC CAPACITOR
- 专利标题(中): 电介质陶瓷和层压陶瓷电容器
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申请号: US13039424申请日: 2011-03-03
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公开(公告)号: US20110222205A1公开(公告)日: 2011-09-15
- 发明人: Tomonori Muraki , Tomoyuki Nakamura , Makoto Matsuda , Akihiro Shiota
- 申请人: Tomonori Muraki , Tomoyuki Nakamura , Makoto Matsuda , Akihiro Shiota
- 申请人地址: JP Nagaokakyo-shi
- 专利权人: MURATA MANUFACTURING CO., LTD.
- 当前专利权人: MURATA MANUFACTURING CO., LTD.
- 当前专利权人地址: JP Nagaokakyo-shi
- 优先权: JP2010-054586 20100311
- 主分类号: H01G4/12
- IPC分类号: H01G4/12 ; C04B35/468
摘要:
A dielectric ceramic (and capacitor containing it) balancing high temperature load characteristics and temperature characteristics of capacitance even when layer thickness is less than 1 μmhas a mixture of different crystal grains containing a barium titanate compound as the main constituent. The first crystal grains can contain rare earth element solid solution region lat the surface layer section. The second crystal grains have a core-shell structure including a shell section having a rare earth element solid solution present. The first and second crystal grains are 12% to 84% f and 16% to 88%, respectively, of the total number of crystal grains.
公开/授权文献
- US08526165B2 Dielectric ceramic and laminated ceramic capacitor 公开/授权日:2013-09-03
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