| 摘要 |
A wiring board has a core structure having a first surface and a second surface on the opposite side of the first surface of the core structure, a first buildup structure formed on the first surface of the core structure and having insulation layers and conductive layers, and a second buildup structure formed on the second surface of the core structure and having insulation layers, conductive layers and an inductor device. The conductive layers in the second buildup structure include conductive patterns forming the inductor device, and one or more of the conductive patterns forming the inductor device has the thickness which is greater than the thicknesses of the conductive layers in the first buildup structure.
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