US 11,817,252 B2
Multilayer coil component
Masashi Shimoyasu, Tokyo (JP); Shinichi Sato, Tokyo (JP); Seiichi Nakagawa, Tokyo (JP); Mamoru Kawauchi, Tokyo (JP); Shigetoshi Kinouchi, Yurihonjo (JP); and Mitsuru Ito, Yurihonjo (JP)
Assigned to TDK CORPORATION, Tokyo (JP)
Filed by TDK CORPORATION, Tokyo (JP)
Filed on Jan. 11, 2022, as Appl. No. 17/573,301.
Application 17/573,301 is a continuation of application No. 16/789,893, filed on Feb. 13, 2020, granted, now 11,270,833.
Application 16/789,893 is a continuation of application No. 15/598,606, filed on May 18, 2017, granted, now 10,643,781, issued on May 5, 2020.
Claims priority of application No. 2016-107490 (JP), filed on May 30, 2016; application No. 2016-107491 (JP), filed on May 30, 2016; and application No. 2016-107493 (JP), filed on May 30, 2016.
Prior Publication US 2022/0130594 A1, Apr. 28, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01F 27/28 (2006.01); H01F 17/00 (2006.01); H01F 27/29 (2006.01); H01F 27/32 (2006.01)
CPC H01F 27/2804 (2013.01) [H01F 17/0013 (2013.01); H01F 27/29 (2013.01); H01F 27/292 (2013.01); H01F 27/324 (2013.01); H01F 2027/2809 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A multilayer coil component, comprising:
an element body;
a coil disposed in the element body;
an external electrode disposed on the element body and electrically connected to the coil; and
a connection conductor disposed in the element body,
wherein the element body includes a principal surface arranged to constitute a mounting surface;
the connection conductor includes one end connected to the coil and another end connected to the external electrode;
the external electrode includes:
a sintered metal layer formed on the element body and in direct contact with the element body,
a conductive resin layer formed on the principal surface to cover the sintered metal layer, and in direct contact with the principal surface and the sintered metal layer, and
a plating layer formed on the conductive resin layer to cover the conductive resin layer, and
an end positioned above the principal surface of the conducive resin layer overlaps the coil, when viewed from a direction orthogonal to the principal surface.