Ceramic multilayer capacitor

Details Ceramic multilayer capacitor Ceramic multilayer capacitor

1989-03-01

1990-03-20

Griffin, Donald A.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

29 2542, H01G 410, H01G 700

Patent

active

049106384

ABSTRACT:
In a multilayer capacitor, which is made of alternate layers 1 of a dielectric oxidic ceramic material and an electrode material 2, and which is provided with metallic end contacts 4 which electrically conductively contact a prescribed part of the layers of electrode material via an intermediate layer 3 of a conductive metal oxide, the metallic end contacts containing silver, the diffusion of silver from the end contacts to the layers of electrode material is suppressed effectively in that the intermediate layer is a heterogeneous layer which, apart from the conductive metal oxide, contains glass particles, and in that the heterogeneous layer has a thickness of at least 1 .mu.m. On account of this, the end contacts can readily be manufactured from a paste, and delamination, cracking and the formation of cavities in the viscinity of the end contacts are suppressed.

REFERENCES:
patent: 4459166 (1984-07-01), Dietz et al.
patent: 4604676 (1986-08-01), Senda et al.

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