COIL COMPONENT AND MANUFACTURING METHOD THEREOF

• Main Author: OISHI MASAYUKI
• Format: Patent
• Language: English; Japanese
• Published: 01.11.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

To provide a coil component in which stress is relaxed and furthermore the position of a coil is stabilized and an increase in the specific resistance of the coil due to corrosive gas can be suppressed, and a manufacturing method of the coil component.SOLUTION: A coil component comprises an element body and a coil provided inside the element body. The element body has a plurality of laminated magnetic layers 11. The coil has a plurality of stacked coil wirings 21. The magnetic layer 11 and the coil wiring 21 are alternately laminated in one direction. The first surface 21a on one side of the coil wiring 21 and the magnetic layer 11 located on one side of the coil wiring are in contact with each other. A gap 51 is provided between the second surface 21b on the other side in one direction of the coil wiring and the other magnetic layer 11 located on the other side in the one direction of the coil wiring. A magnetic film 71 is present on at least a part of the second surface 21b of the coil wiring.SELECTED DRAWING: Figure 4 【課題】応力を緩和しつつ、かつ、コイルの位置が安定し、また、腐食性ガスによるコイルの比抵抗の増大を抑制できるコイル部品およびその製造方法を提供する。【解決手段】コイル部品は、素体と、素体内に設けられたコイルとを備える。素体は、積層された複数の磁性層１１を有する。コイルは、積層された複数のコイル配線２１を有する。磁性層１１とコイル配線２１とは、交互に一方向に積層されている。コイル配線２１における一方向の一方側の第１面２１ａと、コイル配線の一方向の一方側に位置する一方の磁性層１１とは接触する。コイル配線における一方向の他方側の第２面２１ｂとコイル配線の一方向の他方側に位置する他方の磁性層１１との間に空隙部５１を有する。コイル配線の第２面２１ｂの少なくとも一部には、磁性膜７１が存在する。【選択図】図４