US 11,869,708 B2
Method of manufacturing an inductor component
Yoshiyuki Oota, Nagaokakyo (JP); Tomohiro Kido, Nagaokakyo (JP); Tomonori Sakata, Nagaokakyo (JP); Masahiro Kubota, Nagaokakyo (JP); and Kenta Kondo, Nagaokakyo (JP)
Assigned to Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed on Sep. 12, 2018, as Appl. No. 16/129,703.
Claims priority of application No. 2017-180459 (JP), filed on Sep. 20, 2017.
Prior Publication US 2019/0088414 A1, Mar. 21, 2019
Int. Cl. H01F 41/00 (2006.01); H01F 41/04 (2006.01); H05K 3/12 (2006.01); H01F 17/00 (2006.01); H01F 27/28 (2006.01)
CPC H01F 41/041 (2013.01) [H01F 17/0013 (2013.01); H05K 3/12 (2013.01); H01F 2027/2809 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method of manufacturing an inductor component comprising:
preparing a negative photosensitive insulating paste that includes a filler material composed of quartz, a glass material and a resin material, and a negative photosensitive conductive paste;
forming a first insulating layer by applying the insulating paste;
exposing the first insulating layer in a state where a first portion of the first insulating layer is shielded by a mask;
removing the first portion of the first insulating layer to form a groove at a position corresponding to the first portion;
applying the conductive paste in the groove to form a coil conductor layer in the groove; and
applying the insulating paste directly on the first insulating layer and directly on the coil conductor layer to form a second insulating layer, wherein a portion of the coil conductor layer projects outward from the first insulating layer, and the second insulating layer covers the portion of the coil conductor layer and a surface of the first insulating layer from which the portion of the coil conductor layer projects.