电感部件及其制造方法

By uniformly setting the filler content in the inductor component and using low resistivity materials, the problem of external electrode peeling was solved, and the strength and electrical performance of the inductor component were improved.

CN115483006BActive Publication Date: 2026-07-17MURATA MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
MURATA MFG CO LTD
Filing Date
2022-06-06
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The problem of external electrodes easily peeling off from the body in existing inductor components is mainly due to insufficient strength caused by the lack of filler in the contact area of ​​the external electrodes.

Method used

By ensuring a relatively uniform filler content in the external electrode contact area and the center of the inductor component, the filler content in the external electrode contact area is maintained at 0.9 times or more and 1.1 times or less. Combined with the use of low resistivity silver material, the structure of the coil and external electrode is optimized.

Benefits of technology

It improves the strength of the external electrode, reduces the peeling of the external electrode from the body, lowers the coil resistance, increases the Q value at high frequencies, and enhances the adhesion of the plating.

✦ Generated by Eureka AI based on patent content.

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Abstract

提供能够减少外部电极从本体剥离的电感部件及其制造方法。电感部件具备:本体,其包含填料;线圈,其设置于上述本体内,并沿着轴线以螺旋状卷绕;以及外部电极,其设置于上述本体内,并与上述线圈电连接,且外表面从上述本体暴露,上述本体具有:外部电极接触部,其在上述本体的内部侧同上述外部电极接触,并沿着上述外部电极配置;和中心部,其包含上述本体的中心点,且同上述线圈、上述外部电极和上述外部电极接触部隔开,上述外部电极接触部中的上述填料的含有率相对于上述中心部中的上述填料的含有率为0.9倍以上且1.1倍以下。
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