公开(公告)号：US11289251B2

公开(公告)日：2022-03-29

申请号：US16013588

申请日：2018-06-20

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Sang Kyun Kwon ,  Han Wool Ryu ,  Chang Hak Choi

IPC: H01F1/147 ,  B22F1/00 ,  H01F27/255 ,  H01F41/02 ,  H01F1/20 ,  H01F1/153 ,  H01F27/29 ,  H01F17/00 ,  C22C33/02 ,  H01F17/04

Abstract: A coil component includes a body in which a coil portion is disposed, and external electrodes connected to the coil portion. The body includes metal particles formed of an Fe-based nanocrystal grain alloy, and the Fe-based nanocrystal grain alloy has one peak or two peaks in a differential scanning calorimetry (DSC) graph, and when the Fe-based nanocrystal grain alloy has the two peaks, a primary peak is smaller than a secondary peak, where the primary peak is at a lower temperature than the secondary peak.

公开(公告)号：US10714253B2

公开(公告)日：2020-07-14

申请号：US15719286

申请日：2017-09-28

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Sang Kyun Kwon ,  Jong Ho Chung

IPC: H01F3/08 ,  H01F27/255 ,  H01F27/29 ,  H01F3/10 ,  H01F1/153

Abstract: A coil component includes a body having a coil part embedded therein, and an external electrode connected to the coil part. The body contains a plurality of first magnetic particles and a plurality of second magnetic particles, the second magnetic particles being smaller than the first magnetic particles, and the pluralities of first and second magnetic particles are dispersed in a main insulating portion. The plurality of second magnetic particles are dispersed in each of a plurality of sub-insulating portions to constitute composites, and a volume percentage of the second magnetic particles in the composites is 80% to 90%.