MULTILAYER PRINTED WIRING BOARD WITH MAGNETIC MATERIAL AND ITS MANUFACTURING METHOD

PURPOSE: To prevent an adjacent circuit or an external equipment from being adversely affected even if a magnetic field is generated in a circuit conductor. CONSTITUTION: A prepreg 3a in half-cured state is overlapped as an insulation material for the double side of a double-sided plate where an inn...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	NIKAIDO KATSUTOMO, ICHIKAWA JUNICHI, KAWAKAMI SHIN
Format:	Patent
Sprache:	eng
Schlagworte:	CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PURPOSE: To prevent an adjacent circuit or an external equipment from being adversely affected even if a magnetic field is generated in a circuit conductor. CONSTITUTION: A prepreg 3a in half-cured state is overlapped as an insulation material for the double side of a double-sided plate where an inner-layer circuit 2 is formed on the front and reverse sides of a substrate 1, a prepreg 4a in semi-cured state dipped with a magnetic material is overlapped on the surface, further a prepreg 3b in semi-cured state is overlapped on the surface, and copper foil is overlapped and is laminated by heating and pressing, thus forming insulation layers containing the magnetic material between them.