NON-LEAD GLASS CERAMIC COMPOSITION FOR LOW TEMPERATURE FIRING SUBSTRATE

PROBLEM TO BE SOLVED: To provide a non-lead glass ceramic composition for a low temperature firing substrate free from environmental pollution, having a simultaneous sintering property with a Ag based metal conductor at ≤850°C, capable of forming a substrate having high flexural strength and small w...

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Bibliographische Detailangaben
Hauptverfasser:	MAYUMI SADATAKA, TAGUCHI TOMOYUKI, TANIGAMI YOSHINORI
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CABLES CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CONDUCTORS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY INSULATORS LIME, MAGNESIA MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METALLURGY PRINTED CIRCUITS REFRACTORIES SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a non-lead glass ceramic composition for a low temperature firing substrate free from environmental pollution, having a simultaneous sintering property with a Ag based metal conductor at ≤850°C, capable of forming a substrate having high flexural strength and small warpage and having a composition ratio by which low dielectric loss in a GHz zone is attained at the same time. SOLUTION: The non-lead glass ceramic composition comprises 35-60 wt.% glass powder and 40-65 wt.% inorganic filler and the glass powder contains 55-65 wt.% SiO2, 1-5 wt.% Al2O3, 15-20 wt.% B2O3, 10-16 wt.% CaO+MgO and 2-7 wt.% MgO and 0.5-2.5 wt.% BaO+SrO. COPYRIGHT: (C)2005,JPO&NCIPI