CPC H01F 27/255 (2013.01) [H01F 1/344 (2013.01); H01F 27/28 (2013.01); H01F 41/0246 (2013.01)] | 7 Claims |
1. A coil component comprising:
a core including a plurality of ferrite crystal grains and a plurality of Bi segregated regions situated at a grain boundary of the plurality of ferrite crystal grains; and
a winding wound around the core,
wherein a plurality of line profiles obtained by detecting a content of Bi along a plurality of scanning lines intersecting with the grain boundary include at least one first line profile that has a detection peak of Bi at the grain boundary and two or more second line profiles that have no detection peak of Bi; and
wherein the plurality of scanning lines are set at equal intervals.
|