Flat magnetic element and power IC package using the same

Details Flat magnetic element and power IC package using the same Flat magnetic element and power IC package using the same

2006-10-26

2010-10-26

Enad, Elvin G (Department: 2832)

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

C336S222000, C336S223000, C336S232000, C336S233000, C336S083000, C428S928000, C428S357000, C148S304000, C252S06251C, C252S062550

Reexamination Certificate

active

07821371

ABSTRACT:
A planar magnetic device1including a first magnetic layer3, a second magnetic layer5, and a planar coil4disposed between the first magnetic layer3and the second magnetic layer5, wherein magnetic particles7having a shape ratio S/L of 0.7 to 1 when a length of a long axis is L and a length of a short axis orthogonal to the long axis is L are filled in a gap W between coil wirings of the planar coil4. According to the planar magnetic device1, it is possible to realize a planar magnetic device such as an inductor reduced in height by using fine particles that enable to effectively obtain a large inductance value.

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