US 12,272,487 B2
Multilayer coil component
Hajime Kato, Tokyo (JP); Junichiro Urabe, Tokyo (JP); Yuto Shiga, Tokyo (JP); Kazuya Tobita, Tokyo (JP); Youichi Kazuta, Tokyo (JP); Noriaki Hamachi, Tokyo (JP); Toshinori Matsuura, Tokyo (JP); Yuichi Takubo, Tokyo (JP); and Munehiro Takaku, Tokyo (JP)
Assigned to TDK CORPORATION, Tokyo (JP)
Filed by TDK CORPORATION, Tokyo (JP)
Filed on Feb. 17, 2021, as Appl. No. 17/177,421.
Claims priority of application No. 2020-031753 (JP), filed on Feb. 27, 2020.
Prior Publication US 2021/0272743 A1, Sep. 2, 2021
Int. Cl. H01F 27/28 (2006.01); H01F 17/00 (2006.01); H01F 17/02 (2006.01); H01F 27/29 (2006.01)
CPC H01F 27/292 (2013.01) [H01F 17/0013 (2013.01); H01F 17/02 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A multilayer coil component comprising:
an element body having a rectangular parallelepiped shape and including a first main face and a second main face opposed to each other in a first direction, a first end face and a second end face opposed to each other in a second direction intersecting the first direction, and a first side face and a second side face opposed to each other in a third direction intersecting the first direction and the second direction;
a coil including a coil axis along the first direction and disposed in the element body; and
a terminal electrode electrically connected to the coil, wherein
the terminal electrode includes a main-face electrode portion provided on the first main face,
the coil includes a plurality of coil conductors disposed to be separated from each other in the first direction and electrically connected to each other,
the plurality of coil conductors includes a first coil conductor disposed closest to the first main face to oppose to the main-face electrode portion and a second coil conductor disposed closer to the second main face than the first coil conductor,
the first coil conductor has a width narrower than a width of the second coil conductor,
the first coil conductor has an aspect ratio higher than an aspect ratio of the second coil conductor,
the first coil conductor has, when viewed from the first direction, (i) an outer edge aligning with an outer edge of the second coil conductor and an inner edge not aligning with an inner edge of the second coil conductor, or (ii) an outer edge not aligning with an outer edge of the second coil conductor and an inner edge aligning with an inner edge of the second coil conductor, and
the first coil conductor has a cross-sectional area equal to a cross-sectional area of the second coil conductor.