US 12,014,866 B2
Coil electronic component
Young Il Lee, Suwon-si (KR); Han Wool Ryu, Suwon-si (KR); and Sang Kyun Kwon, Suwon-si (KR)
Assigned to SAMSUNG ELECTRO-MECHANICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRO-MECHANICS CO., LTD., Suwon-Si (KR)
Filed on Sep. 20, 2022, as Appl. No. 17/948,656.
Application 17/948,656 is a continuation of application No. 16/003,901, filed on Jun. 8, 2018, granted, now 11,495,398.
Claims priority of application No. 10-2017-0135379 (KR), filed on Oct. 18, 2017.
Prior Publication US 2023/0015432 A1, Jan. 19, 2023
Int. Cl. H01F 1/147 (2006.01); C23C 16/455 (2006.01); H01F 1/26 (2006.01); H01F 17/00 (2006.01); H01F 17/04 (2006.01); H01F 27/255 (2006.01); H01F 27/29 (2006.01); H01F 27/32 (2006.01); C23C 16/40 (2006.01); H01F 1/33 (2006.01); H01F 41/02 (2006.01)
CPC H01F 27/324 (2013.01) [C23C 16/45555 (2013.01); H01F 1/147 (2013.01); H01F 1/26 (2013.01); H01F 17/0013 (2013.01); H01F 17/04 (2013.01); H01F 27/255 (2013.01); H01F 27/29 (2013.01); H01F 27/292 (2013.01); C23C 16/403 (2013.01); C23C 16/45525 (2013.01); H01F 1/33 (2013.01); H01F 2017/048 (2013.01); H01F 41/0246 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A coil electronic component comprising:
a body including an insulator;
a coil portion embedded in the body;
aggregates dispersed in the insulator, where the aggregates each comprise a plurality of magnetic particles directly contacting each other;
coating layers formed on respective surfaces of the aggregates; and
external electrodes connected to the coil portion,
wherein at least one coating layer is formed in accordance with the surface of at least one of the aggregates, and
wherein the at least one of the aggregates includes an aggregated region of magnetic particles which is devoid of the at least one coating layer.