| 摘要 |
<p>A laminated coil part that prevents decreasing of the thickness of layer functioning as a nonmagnetic layer, accordingly ensuring fair direct-current superposition characteristics. There is provided a laminated coil part having ferrite layer of low magnetic permeability (3) and, disposed on both major surfaces thereof, ferrite layers of high magnetic permeability (2). The ferrite layer of low magnetic permeability (3) is furnished with holes (15) or resin-filled holes (15). At firing, substantially no diffusion of Ni from the ferrite layers of high magnetic permeability (2) would occur to the holes (15) or resin-filled holes (15), thereby suppressing the diffusion of Ni to the ferrite layer of low magnetic permeability (3).</p> |
