LOW TEMPERATURE-FIRED CERAMIC SINTERED PRODUCT AND METHOD FOR PRODUCING THE SAME, AND WIRING BOARD

PROBLEM TO BE SOLVED: To obtain a low temperature-fired ceramic sintered product which has high strength, high thermal conductivity and high Young's modulus, is dense, can be produced by firing at a low temperature of ≤1,000°C, and is useful as an insulating substrate having a wiring layer comp...

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Bibliographische Detailangaben
Hauptverfasser:	TERASHI YOSHITAKE, KOKUBU MASAYA, KAWAI SHINYA
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CABLES CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CEMENTS CERAMICS CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CONDUCTORS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GLASS INSULATORS JOINING GLASS TO GLASS OR OTHER MATERIALS LIME, MAGNESIA MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METALLURGY MINERAL OR SLAG WOOL PRINTED CIRCUITS REFRACTORIES SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES SLAG SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a low temperature-fired ceramic sintered product which has high strength, high thermal conductivity and high Young's modulus, is dense, can be produced by firing at a low temperature of ≤1,000°C, and is useful as an insulating substrate having a wiring layer composed of low resistant conductors such as Cu, Ag, Au and Al on the surface or inside thereof.SOLUTION: The sintered product includes, as crystal phases, (a) a gahnite crystal phase and/or spinel crystal phase, (b) a celsian crystal phase containing a needle-like crystal having an aspect ratio of ≥3 and (c) at least one crystal phase selected from the group consisting of AlN, SiN, SiC, AlO, ZrO, 3AlO-2SiOand MgSiO, and has an open porosity of ≤0.3%.