US 12,087,496 B2
Method for manufacturing coil component
Hidenori Aoki, Tokyo (JP); and Tomoo Kashiwa, Tokyo (JP)
Assigned to TAIYO YUDEN CO., LTD., Tokyo (JP)
Filed by TAIYO YUDEN CO., LTD., Tokyo (JP)
Filed on Jun. 26, 2023, as Appl. No. 18/341,348.
Application 18/341,348 is a continuation of application No. 17/131,258, filed on Dec. 22, 2020.
Claims priority of application No. 2019-239031 (JP), filed on Dec. 27, 2019.
Prior Publication US 2023/0335331 A1, Oct. 19, 2023
Int. Cl. H01F 27/29 (2006.01); H01F 17/00 (2006.01); H01F 27/28 (2006.01); H01F 27/30 (2006.01); H05K 3/30 (2006.01)
CPC H01F 27/292 (2013.01) [H01F 17/0013 (2013.01); H01F 27/2828 (2013.01); H01F 27/306 (2013.01); H05K 3/301 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method for manufacturing a coil component, the method comprising:
forming a coil conductor including a winding portion, the winding portion including a plurality of first conductor portions and one or more second conductor portions smaller in number than the first conductor portions, the first and second conductor portions alternate with and connected to each other;
forming a molded body by molding composite magnetic material including metal magnetic particles and a binder with the coil conductor being disposed inside the composite magnetic material;
heating the molded body to produce a magnetic base body, the magnetic base body having a first surface extending along a coil axis and a second surface opposing the first surface; and
forming an external electrode on the magnetic base body,
wherein the magnetic base body is formed such that a first distance between the first conductor portions and the first surface is greater than a second distance between the second conductor portions and the second surface by molding, cutting or polishing.