Ceramic via composition, multilayer ceramic circuit containing same, and process for using same

A novel metal filled via composition for co-firing with glass-ceramic material. The composition comprises a conductive first metal (copper), an oxidizable second metal (selected from the group consisting of iron, nickel and cobalt) and an organic medium in which said first and second metal are dispe...

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Bibliographische Detailangaben
Hauptverfasser:	DIVAKARUNI, RENUKA SHASTRI, NATARAJAN, GOVINDARAJAN, REDDY, SRINIVASA S.N, SAMMET, MANFRED, CASEY, JON ALFRED
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY LIME, MAGNESIA MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METALLURGY PRINTED CIRCUITS REFRACTORIES SEMICONDUCTOR DEVICES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	A novel metal filled via composition for co-firing with glass-ceramic material. The composition comprises a conductive first metal (copper), an oxidizable second metal (selected from the group consisting of iron, nickel and cobalt) and an organic medium in which said first and second metal are dispersed. The via composition has a volume shrinkage approximating that of the ceramic material, and thus overcomes the problem of volume shrinkage mismatch between the via (particularly copper filled via) and ceramic upon sintering. The novel via composition exhibits enhanced adhesion to the ceramic. A sintering process by which shrinkage of the novel via composition is controlled and adhesion is improved is also disclosed.