GLASS CERAMIC AND METHOD FOR MANUFACTURING THE SAME, AND CIRCUIT SUBSTRATE USING THE GLASS CERAMIC

PROBLEM TO BE SOLVED: To provide a glass ceramic which can be sintered at a temperature of 1050 deg.C or lower, can be sintered synchrously with a conductor, the main ingredient of which is Cu or Ag, having high thermal conductivity, high strength, excellent water resistance, low dielectric constant...

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Bibliographische Detailangaben
Hauptverfasser:	IWACHI HIROMI, TERASHI YOSHITAKE
Format:	Patent
Sprache:	eng
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:	PROBLEM TO BE SOLVED: To provide a glass ceramic which can be sintered at a temperature of 1050 deg.C or lower, can be sintered synchrously with a conductor, the main ingredient of which is Cu or Ag, having high thermal conductivity, high strength, excellent water resistance, low dielectric constant and low dielectric loss. SOLUTION: A circuit substrate 1 (package for accommodating semiconductor elements) is produced by forming a conductive wiring layer 3 on the surface of and/or the inside of an insulated substrate 2 which is composed of glass ceramics produced by dispersing AlN grains, the mean grain diameter of which is 2 μm or more, in a glass and/or a glass crystallized matrix, and the metallic Al content of which is 800 ppm or less to the total amount.