MULTILAYER COIL COMPONENT

To provide a multilayer coil component in which breaking of a coil caused by a crack can be suppressed.SOLUTION: In a multilayer coil component, a filled portion filled with resin and a pore portion V2 not filled with resin exist between a plurality of metal magnetic particles in the element assembl...

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Main Authors MORITA MAKOTO, EBINA KAZUHIRO, WADA RYUICHI, KAWASAKI KUNIHIKO, NAGAI YUSUKE, YASUDA KEITO, SUZUKI TAKASHI, KONDO SHINICHI, KUDO TAKAKIYO, TONOYAMA KYOHEI
Format Patent
LanguageEnglish
Japanese
Published 14.04.2022
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Summary:To provide a multilayer coil component in which breaking of a coil caused by a crack can be suppressed.SOLUTION: In a multilayer coil component, a filled portion filled with resin and a pore portion V2 not filled with resin exist between a plurality of metal magnetic particles in the element assembly 2. One of main surfaces 2b of the element assembly 2 serves as a mount surface P for an external electronic component and an edge 4e of an external electrode 4 exists on the mount surface P. In the element assembly 2, a high porous region F whose porosity by the pore portion is higher than the porosity of the other part in the element assembly 2 extends from the edge 4e of the external electrode 4 on the mount surface P to an end surface 2a of the element assembly 2.SELECTED DRAWING: Figure 5 【課題】クラックによるコイルの断線を抑制できる積層コイル部品を提供する。【解決手段】積層コイル部品において、素体2内の複数の金属磁性粒子間には、樹脂による充填部分と、樹脂による充填のない空隙部2とが存在する。素体2における主面2bの一方は、外部電子部品に対する実装面Pとなっていると共に、実装面Pには、外部電極4の縁4eが位置している。素体2内には、空隙部分による空隙率が素体2内の他の部分の空隙率よりも高い高空隙領域Fが、実装面Pにおける外部電極4の縁4eから素体2の端面2aに向かって延びている。【選択図】図5
Bibliography:Application Number: JP20200167762