Laminated Coil Parts

Abstract

The present invention provides a laminated coil component that has dispersed resonance frequencies, can be used in a wide frequency band, and has excellent high-frequency characteristics. This laminated coil component includes a laminated body, a first external electrode, and a second external electrode. The coil is formed by electrically connecting a plurality of coil conductors laminated together with an insulating layer. The first external electrode is arranged to cover the first and extending from the first end face to cover a part of the first main surface, the second external electrode is arranged to cover a part of the second end face and extend from the second end face to cover a part of the first main surface, the first The main surface is the mounting surface, the stacking direction of the laminated body and the axial direction of the coil are parallel to the mounting surface, and the insulating layer between the coil conductors is made of a material containing at least one of a magnetic material and a non-magnetic material. From the first end surface of the laminated body The content of the non-magnetic material contained in the insulating layer changes toward the second end surface.

Description

technical field [0001] The present invention relates to a laminated coil component. Background technique [0002] As a laminated coil component, for example, Patent Document 1 discloses the following content: "A laminated coil component is characterized by comprising: a ceramic laminate formed by laminating a plurality of ceramic layers and a plurality of internal electrodes; and A helical coil formed by electrically connecting a plurality of the internal electrodes, and the magnetic permeability and / or dielectric constant of the ceramics of the ceramic laminate change stepwise or continuously in the axial direction of the helical coil." [0003] Patent Document 1: Japanese Patent Laid-Open No. 2005-109195 [0004] In response to the increase in communication speed and miniaturization of electrical equipment in recent years, the multilayer coil component is required to have sufficient high-frequency characteristics in a high-frequency band (for example, a GHz band of 30 GHz...

AI Technical Summary

Problems solved by technology

However, if the porosity becomes high, the strength will decrease, and it will be difficult to sufficiently reduce the magnetic permeability and dielectric constant. Therefore, it is considered that the degree of freedom in design decreases.

[0006] As a result, when used as a noise absorbing part in the high-frequency region above 30 GHz, the characteristics may not be fully exhibited

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