US 12,283,412 B2
Manufacturing method of magnetic element
Shouyu Hong, Shanghai (CN); Ganyu Zhou, Shanghai (CN); Zhiheng Fu, Shanghai (CN); Yan Tong, Shanghai (CN); Qingdong Chen, Shanghai (CN); Xiaoni Xin, Shanghai (CN); Jinping Zhou, Shanghai (CN); Pengkai Ji, Shanghai (CN); and Yiqing Ye, Shanghai (CN)
Assigned to Delta Electronics (Shanghai) Co., Ltd., Shanghai (CN)
Filed by Delta Electronics (Shanghai) Co., Ltd., Shanghai (CN)
Filed on Apr. 22, 2024, as Appl. No. 18/642,793.
Application 18/642,793 is a division of application No. 17/024,720, filed on Sep. 18, 2020, granted, now 12,002,615.
Application 17/024,720 is a continuation in part of application No. 16/653,970, filed on Oct. 15, 2019, granted, now 11,664,157, issued on May 30, 2023.
Claims priority of application No. 201811301185.4 (CN), filed on Nov. 2, 2018; application No. 201910886947.X (CN), filed on Sep. 19, 2019; and application No. 201910912171.4 (CN), filed on Sep. 25, 2019.
Prior Publication US 2024/0274345 A1, Aug. 15, 2024
Int. Cl. H01F 27/28 (2006.01); H01F 27/24 (2006.01); H01F 27/32 (2006.01); H01F 41/02 (2006.01); H01F 41/04 (2006.01); H01F 41/12 (2006.01)
CPC H01F 27/2804 (2013.01) [H01F 27/24 (2013.01); H01F 27/324 (2013.01); H01F 41/0206 (2013.01); H01F 41/041 (2013.01); H01F 41/125 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A manufacturing method of a magnetic element, comprising:
forming an insulation layer on an outer side of at least one section of a magnetic column of a magnetic core;
forming a metal wiring layer on an outer side of the insulation layer through a metallization process; and
dividing at least part of the metal wiring layer into a multi-turn metal winding through a mechanically dividing process.