Monolithic ceramic capacitor and method of producing the same

Details Monolithic ceramic capacitor and method of producing the same Monolithic ceramic capacitor and method of producing the same

1996-06-04

1999-03-09

Speer, Timothy M.

Stock material or miscellaneous articles

Composite

Of metal

428472, 428701, 428702, 3613214, 3613215, B32B 1700

Patent

active

058798129

ABSTRACT:
Disclosed is a monolithic ceramic capacitor composed of plural dielectric ceramic layers made of a ceramic material comprising strontium titanate and bismuth oxide or the like, plural inner electrodes made of a base metal material comprising nickel or a nickel alloy, which are laminated via the dielectric ceramic layer to produce the electrostatic capacity of the capacitor, and outer electrodes as electrically connected with the inner electrodes. Each dielectric ceramic layer in the capacitor contains a reduction inhibitor, for example aMO+bMnO.sub.2 +cB.sub.2 O.sub.3 +(100--a--b--c)SiO.sub.2 (where M is at least one of Mg, Sr, Ca and Ba; and a, b and c each are, in % by mol, 10.ltoreq.a.ltoreq.60, 5.ltoreq.b.ltoreq.20 and 20.ltoreq.c.ltoreq.35). In producing the capacitor, the laminate of dielectric ceramic layers may be fired in a neutral or reducing atmosphere without being reduced.

REFERENCES:
patent: 4467396 (1984-08-01), Leupold
patent: 4482934 (1984-11-01), Hirota
patent: 4833000 (1989-05-01), Trickett et al.
patent: 4935844 (1990-06-01), Burn
patent: 5036425 (1991-07-01), Omori et al.
patent: 5117326 (1992-05-01), Sano et al.
patent: 5411563 (1995-05-01), Yeh et al.
patent: 5459635 (1995-10-01), Tomozawa
patent: 5672220 (1997-09-01), Omori

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