IP Library › Granted Patent US 12,469,638
Granted Patent B2
US 12,469,638 · App. 18/521,878 · Granted Nov 11, 2025

Method of manufacturing an inductor component

Inventors: Yoshiyuki Oota (Nagaokakyo, JP); Tomohiro Kido (Nagaokakyo, JP); Tomonori Sakata (Nagaokakyo, JP); Masahiro Kubota (Nagaokakyo, JP); Kenta Kondo (Nagaokakyo, JP)
Assignee: Murata Manufacturing Co., Ltd.
H01F41/041H01F17/0013H05K3/12H01F2027/2809
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Quick Facts
Patent No.
US 12,469,638
App. No.
18/521,878
Granted
Nov 11, 2025
Kind
B2
Abstract

A method of manufacturing an inductor component includes preparing an insulating paste that is photosensitive and that includes a filler material composed of quartz, a glass material and a resin material, and a conductive paste, forming a first insulating layer by applying the insulating paste, and exposing the first insulating layer in a state where a first portion of the first insulating layer is shielded by a mask. The method further includes 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 on the first insulating layer and the coil conductor layer to form a second insulating layer.

Claims (12)

1 . An inductor component comprising:

an element body formed by stacking a plurality of insulating layers, the insulating layers including a filler material composed of quartz and a glass material; and

a coil provided in the element body, the coil including a coil conductor layer wound on each of the insulating layers,

wherein

an aspect ratio of the coil conductor layer is about 1.0 or more, and the aspect ratio is defined by a thickness of the coil conductor layer in a coil axis direction divided by a width of the coil conductor layer, and

a side surface of the coil conductor layer has one protrusion or is smooth in a cross section perpendicular to a direction in which the coil conductor layer extends.

2 . The inductor component according to claim 1 ,

wherein the aspect ratio of the coil conductor layer is about 2.0 or less.

3 . The inductor component according to claim 1 ,

wherein, in the cross section, the coil conductor layer includes a body portion and a head portion connected to the body portion, a width of the head portion is larger than a width of the body portion, and a thickness of a portion of the head portion is smaller than a thickness of the body portion.

4 . The inductor component according to claim 2 ,

wherein, in the cross section, the coil conductor layer includes a body portion and a head portion connected to the body portion, a width of the head portion is larger than a width of the body portion, and a thickness of a portion of the head portion is smaller than a thickness of the body portion.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 28, 2023
From: OOTA, YOSHIYUKI; KIDO, TOMOHIRO; SAKATA, TOMONORI; KUBOTA, MASAHIRO; KONDO, KENTA
To: MURATA MANUFACTURING CO., LTD.
Reel/Frame 065689/0811 →
Priority Claims (1)
JP 2017-180459 · Sep 20, 2017 · national
Continuity (2)
Division 16129703 · Sep 12, 2018
Related Publication 20240096551A1 · Mar 21, 2024
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