| 摘要 |
PROBLEM TO BE SOLVED: To reduce electrical resistance of wiring while considering characteristics of a coil conductor in a substrate with a built-in coil.SOLUTION: A substrate 1 with a built-in coil includes: a magnetic layer 11a; an insulator layer 11b provided on the magnetic layer 11a; a coil conductor 12 provided in the magnetic layer 11a; an element connecting electrode 13a provided on the insulator layer 11b; a first via conductor 14, a first wiring conductor layer 15, and a second via conductor 16 which are provided in the insulator layer 11b; a second wiring conductor layer 17 provided on the insulator layer 11b; and a side conductor 18 provided on a side surface of the insulator layer 11b. The second via conductor 16 is provided close to the first via conductor 14 in the insulator layer 11b. |
