摘要 |
The device includes a first inductor, a first insulating layer, a second inductor, and a third inductor. The first inductor includes a helical conductive pattern. The second inductor is located in a region overlapping the first inductor through the first insulating layer. The second inductor includes a helical conductive pattern. The third inductor is connected in series to the second inductor, and includes a helical conductive pattern. |