Ceramic multilayer capacitor
AssigneeU.S. Philips Corporation
InventorsCornelis W. Berghout, Hendrikus J. J. M. Van Haren
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AssigneeU.S. Philips Corporation
InventorsCornelis W. Berghout, Hendrikus J. J. M. Van Haren
Estimating the term…
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.
A multilayer capacitor comprising alternate layers of a dielectric oxidic ceramic material and an electrode material, and having metallic end contacts which electrically conductively contact a prescribed part of the layers of electrode material via an intermediate layer of a conductive metal oxide, the metallic end contacts containing silver, characterized in that the intermediate layer is a heterogeneous layer which, apart from the conductive metal oxide, contains glass particles and which has a thickness of at least 1 .mu.m.
A method of manufacturing a multilayer capacitor from alternate layers of a dielectric oxidic ceramic material and an electrode material, which capacitor is provided with metallic end contacts which electrically conductively contact a prescribed part of the layers of electrode material via an intermediate layer of a conductive metal oxide, the metallic end contacts containing silver, characterized in that the intermediate layer is manufactured from a paste which, apart from the conductive metal oxide, comprises a temporary binder and glass particles.
Dependencies are inferred from the claim text.