Inductor built-in substrate

An inductor built-in substrate includes a core substrate having openings, a magnetic resin filled in the openings of the core substrate, and through-hole conductors formed through the core substrate such that each of the through-hole conductors includes a metal film. The magnetic resin has through h...

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Bibliographische Detailangaben
Hauptverfasser: Kodama, Hiroaki, Kuranobu, Kazuhiko, Uno, Hiroaki, Nishiwaki, Kazuro
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An inductor built-in substrate includes a core substrate having openings, a magnetic resin filled in the openings of the core substrate, and through-hole conductors formed through the core substrate such that each of the through-hole conductors includes a metal film. The magnetic resin has through holes formed through the magnetic resin such that the through-hole conductors include a group of through-hole conductors formed in the through holes formed through the magnetic resin, and the magnetic resin includes an iron oxide filler in an amount of 60% by weight or more.