发明授权
- 专利标题: Dielectric ceramic composition and electronic device
- 专利标题(中): 介电陶瓷组合物和电子器件
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申请号: US11207929申请日: 2005-08-22
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公开(公告)号: US07262146B2公开(公告)日: 2007-08-28
- 发明人: Kazushige Ito , Akira Sato
- 申请人: Kazushige Ito , Akira Sato
- 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
- 代理机构: Oliff & Berridge, PLC
- 优先权: JP2004-250941 20040830; JP2005-169895 20050609
- 主分类号: C04B35/468
- IPC分类号: C04B35/468 ; H01G4/12
摘要:
A dielectric ceramic composition, comprising a main component including barium titanate; a first subcomponent including at least one kind selected from MgO, CaO, BaO and SrO; a second subcomponent functioning as a sintering auxiliary agent; a third subcomponent including at least one kind selected from V2O5, MoO3 and WO3; a fourth subcomponent including an oxide of R1 (note that R1 is at least one kind selected from Sc, Er, Tm Yb and Lu); a fifth subcomponent including CaZrO3 or CaO+ZrO2; and an eighth subcomponent including an oxide of A (note that A is at least one kind selected from a cation element group having an effective ionic radius at the time of 6 coordination of 0.065 nm to 0.085 nm); wherein a ratio of the eighth subcomponent with respect to 100 moles of the main component is 0 to 4 moles (note that 0 mole and 4 moles are excluded, and the value is in terms of an A oxide).
公开/授权文献
- US20060046922A1 Dielectric ceramic composition and electronic device 公开/授权日:2006-03-02
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