Laminated coil component
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United States of America Patent
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May 18, 2010
Grant Date -
Apr 2, 2009
app pub date -
Dec 17, 2008
filing date -
Jun 20, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A laminated coil component includes high-magnetic-permeability ferrite layers that are disposed on both main surfaces of a low-magnetic-permeability ferrite layer. Pores or pores filled with a resin are formed in the low-magnetic-permeability ferrite layer. Nickel in the high-magnetic-permeability ferrite layers does not significantly diffuse into the pores or the pores filled with the resin during firing, and thus, Ni does not readily diffuse into the low-magnetic-permeability ferrite layer.
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