Title:
FLAT MAGNETIC ELEMENT AND POWER IC PACKAGE USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2007/052528
Kind Code:
A1
Abstract:
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.
Inventors:
INOUE TETSUO
SATO AKIRA
NAKAGAWA KATSUTOSHI
SATO AKIRA
NAKAGAWA KATSUTOSHI
Application Number:
PCT/JP2006/321368
Publication Date:
May 10, 2007
Filing Date:
October 26, 2006
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA MATERIALS CO LTD (JP)
INOUE TETSUO
SATO AKIRA
NAKAGAWA KATSUTOSHI
TOSHIBA MATERIALS CO LTD (JP)
INOUE TETSUO
SATO AKIRA
NAKAGAWA KATSUTOSHI
International Classes:
H01F27/255; H01F1/20; H01F17/04; H01F41/02
Foreign References:
| JPH05275247A | 1993-10-22 | |||
| JP2002353030A | 2002-12-06 | |||
| JP2003017322A | 2003-01-17 | |||
| JP2002299120A | 2002-10-11 | |||
| JP2002299122A | 2002-10-11 |
Attorney, Agent or Firm:
HATANO, Hisashi et al. (2nd Floor Miyata Building, 17-16, Nishi-Shimbashi 1-Chome, Minato-K, Tokyo 03, JP)
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