Laminated ceramic capacitor

A laminated ceramic capacitor whose capacity temperature characteristics satisfy the X8R characteristics of EIA standards and whose capacity change over time is slight. There is provided a dielectric layer comprising barium titanate as a main component and, per 100 mol thereof, 0.1 to 3 mol of first...

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Bibliographische Detailangaben
Hauptverfasser:	IGUCHI, TOSHIHIRO, SATO, SHIGEKI, SATO, AKIRA+, ITO, KAZUSHIGE, HARA, HARUYA
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CABLES CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CONDUCTORS ELECTRICITY INSULATORS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS REFRACTORIES SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES SLAG TRANSPORTING TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	A laminated ceramic capacitor whose capacity temperature characteristics satisfy the X8R characteristics of EIA standards and whose capacity change over time is slight. There is provided a dielectric layer comprising barium titanate as a main component and, per 100 mol thereof, 0.1 to 3 mol of first subordinate component consisting of at least one member selected from among MgO, CaO, BaO and SrO, 2 to 10 mol of second subordinate component containing silicon oxide as a main component, 0.01 to 0.5 mol of third subordinate component consisting of at least one member selected from among V2O5, MoO3 and WO3, 0.5 to 7 mol (in terms of ratio of R1 per se) of fourth subordinate component consisting of an oxide of R1 (R1 representing at least one member selected from among Sc, Er, Tm, Yb and Lu), more than 0 but not more than 5 mol of fifth subordinate component consisting of CaZrO3 or CaO+ZrO2 and more than 0 but not more than 9 mol of sixth subordinate component consisting of an oxide of R2 (R2 representing at least one member selected from among Y, Dy, Ho, Tb, Gd and Eu), which dielectric layer is constructed of crystal grains of 0.2 to 0.55 mum average grain diameter.