COIL COMPONENT AND ITS MANUFACTURING METHOD

In a coil component of the present invention, a coil member having a plurality of coil lines laminated through an insulating layer is sandwiched by hexagonal ferrite substrates, and the hexagonal ferrite substrate has anisotropy. To have the "anisotropy" means that alignment of the crystal...

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Bibliographische Detailangaben
Hauptverfasser:	MIKAMI, HIDETO, KATO, TOMOTSUGU, NAKADA, MIYAKO, NOGUCHI, SHIN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F CONCRETE ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INDUCTANCES INORGANIC CHEMISTRY LIME, MAGNESIA MAGNETS METALLURGY REFRACTORIES SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES SLAG TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSFORMERS TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	In a coil component of the present invention, a coil member having a plurality of coil lines laminated through an insulating layer is sandwiched by hexagonal ferrite substrates, and the hexagonal ferrite substrate has anisotropy. To have the "anisotropy" means that alignment of the crystal orientation is different according to a direction of the substrate, in other words, that anisotropy is provided in the c-axis orientation of ferrite crystal grains of the hexagonal ferrite substrate. As the result of the "anisotropy", an initial magnetic permeability is also different according to direction. By using the hexagonal ferrite substrate as a magnetic substrate to sandwich the coil member so as to form a magnetic path, the initial magnetic permeability can be maintained up to a high frequency, and a high-frequency characteristic of impedance generated by the coil lines can be improved.