Patent ID: 9155196
Filing Date: 2015-10-06
Classification: H01L,H05K

Abstract:
1. A wiring board, comprising: a substrate having a laminated-inductor forming portion and comprising a plurality of first insulation layers and a second insulation layer formed on a first side of the plurality of first insulation layers such that the plurality of first insulation layers has the laminated-inductor forming portion; and a planar conductor formed on the second insulation layer of the substrate and configured to shield electromagnetic force generated from the laminated-inductor forming portion of the substrate, wherein the laminated-inductor forming portion of the substrate has a plurality of inductor patterns formed on the first insulation layers and a plurality of via conductors connecting the inductor patterns through the first insulation layers, and the plurality of inductor patterns includes an uppermost inductor pattern formed between the second insulation layer and the plurality of first insulation layers such that the uppermost inductor pattern has a distance of 100 μm or more from the planar conductor.