FLAT MAGNETIC ELEMENT AND POWER IC PACKAGE USING THE SAME

摘要

A flat magnetic element (1) includes a flat coil (4) arranged between a first magnetic layer (3) and a second magnetic layer (5). A gap (W) between coil wires of the flat coil (4) is filled with magnetic particles (7) having shape ratio S/L in the range of 0.7 to 1, wherein L represents the long axis length and S represents the short axis length. By using micro particles capable of effectively obtaining a high inductance value, it is possible to realize a flat magnetic element such a inductor having a reduced height.