US 11,837,388 B2
Coil component
Byung Soo Kang, Suwon-si (KR); Ju Hwan Yang, Suwon-si (KR); Byeong Cheol Moon, Suwon-si (KR); Yoon Mi Cha, Suwon-si (KR); and Mi Geum Kim, 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. 17, 2019, as Appl. No. 16/573,319.
Claims priority of application No. 10-2018-0138612 (KR), filed on Nov. 13, 2018.
Prior Publication US 2020/0152370 A1, May 14, 2020
Int. Cl. H01F 27/28 (2006.01); H01F 27/29 (2006.01); H01F 41/04 (2006.01); H01F 41/12 (2006.01); H01F 27/255 (2006.01)
CPC H01F 27/2804 (2013.01) [H01F 27/255 (2013.01); H01F 27/29 (2013.01); H01F 41/041 (2013.01); H01F 41/122 (2013.01); H01F 2027/2809 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A coil component comprising:
a body comprising magnetic metal powder particles and an insulating resin;
a coil portion embedded in the body; and
first and second external electrodes respectively disposed on the body to be spaced apart from each other and respectively connected to both end portions of the coil portion,
wherein a magnetic metal powder particle exposed from a surface of the body, among the magnetic metal powder particles, has a plating prevention film disposed on at least a portion of a surface thereof and containing an oxide of at least one element included in the exposed magnetic metal powder particle, and
the plating prevention film of the exposed magnetic metal powder particle and a plating prevention film disposed on at least a portion of a surface of another exposed magnetic metal powder particle are discontinuously distributed along the surface of the body.