| 摘要 |
<p>A coil component (1) is equipped with a layered body (2) and coil conductors (33A, 34A, 35A). The layered body (2) is configured by layering insulating layers (21-25) and wiring layers (31-35). The coil conductors (33A, 34A, 35A) have a coil shape with the layering direction of the layered body (2) as the axis thereof, and are provided in the wiring layers (33-35). The coil component (1) is used with the coil conductor (33A) facing the built-in ground electrode (91) of an external substrate (9). The surface roughness of the interface of the nearest coil conductor (33A) parallel to the built-in ground electrode (91) is less than the average surface roughness of all interfaces of the coil conductors (33A, 34A, 35A) parallel to the built-in ground electrode (91).</p> |
