Thin crystal base metal internal electrode multilayer ceramic sheet type capacitor medium material
Title:
Thin crystal base metal internal electrode multilayer ceramic sheet type capacitor medium material
Application Number:
200510130476
Application Date:
2005/12/13
Announcement Date:
2006/07/12
Pub. Date:
Publication Number:
1801417
Announcement Number:
Grant Date:
Granted Pub. Date:
ApplicationType:
Invention
State/Country:
11[China|beijing]
IPC:
H01G 4/12, H01B 3/12, C04B 35/00
Applicant(s):
Tsinghua University
Inventor(s):
Wang Xiaohui, Chen Lei, Li Longtu, Gui Zhilun
Key Words:
Thin crystal base metal,internal electrode, multilayer ceramic sheet type, capacitor medium material
Abstract:
The invention discloses a medium material for fine-grained base metal inner electrode multilayer ceramic plate capacitor, which comprises: solid solution main material Bam(Ti1-xZrx)O3, and addition agent with A constituent of metal oxide and predecessor of Ba and Ca and Mn and B constituent of REE oxide and predecessor. Wherein, sintering in reducing atmosphere at 1150~1300Deg, 0.5~3m grain size, 7600~23300 dielectric constant at room temperature, dielectric loss less than 1%, and insulation resistivity more than 1011Q.cm. The opposite capacitor with this medium material has doctor-blade thickness of medium layer less than 10m, breakdown field strength more than 80kV/mm, and wide application future.
Claim:
Priority:
PCT:
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