US 12,278,039 B2
Coil electronic component and method of manufacturing same
Dong Jin Jeong, 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 Dec. 19, 2022, as Appl. No. 18/083,749.
Application 18/083,749 is a continuation of application No. 16/922,335, filed on Jul. 7, 2020, granted, now 11,562,848.
Application 16/922,335 is a continuation of application No. 15/955,464, filed on Apr. 17, 2018, granted, now 10,734,155, issued on Aug. 4, 2020.
Application 15/955,464 is a continuation of application No. 15/098,938, filed on Apr. 14, 2016, granted, now 9,978,501, issued on May 22, 2018.
Claims priority of application No. 10-2015-0111460 (KR), filed on Aug. 7, 2015.
Prior Publication US 2023/0118574 A1, Apr. 20, 2023
Int. Cl. H01F 27/32 (2006.01); H01F 27/255 (2006.01); H01F 27/28 (2006.01); H01F 27/29 (2006.01); H01F 41/02 (2006.01); H01F 41/04 (2006.01)
CPC H01F 27/2804 (2013.01) [H01F 27/255 (2013.01); H01F 27/29 (2013.01); H01F 27/323 (2013.01); H01F 41/0233 (2013.01); H01F 41/042 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A coil electronic component including a magnetic body having an internal coil part embedded therein, wherein the internal coil part includes:
an insulating substrate;
a first insulator disposed on at least one of first and second main surfaces of the insulating substrate and having a groove formed therein;
a coil conductor disposed inside the groove; and
a second insulator,
wherein the second insulator covers an upper surface of the coil conductor, inner lateral surfaces of the first insulator defining the groove, and a lateral surface of the first and second main surfaces of the insulating substrate,
wherein a sum of a thickness of the coil conductor measured in a direction orthogonal to the at least one of the first and second main surfaces of the insulating substrate and a thickness of the second insulator in the direction orthogonal to the at least one of the first and second main surfaces of the insulating substrate is substantially equal to a thickness of the first insulator measured in the direction orthogonal to the at least one of the first and second main surfaces of the insulating substrate,
a portion of the second insulator is in contact with the magnetic body in which the insulating substrate is disposed, the portion of the second insulator is disposed between the magnetic body and an innermost lateral surface of the first insulator in the direction orthogonal to the at least one of the first and second main surfaces of the insulating substrate.