Electronic/electrical device with planar-type inductance e.g. for CPU or computer circuit board

摘要

An electric device including a basic circuit board (BLP) and a wiring circuit board (WLP) in which the latter is electrically contacting to the basic circuit board (BLP), and in which the basic circuit board (BLP) is designed as a multi-layer circuit board with a number of basic circuit board layers and the wiring circuit board (WLP) as a multi-layer circuit board with a number of wiring circuit board layers. A ferromagnetic element (FE) is provided on the wiring circuit board (WLP), is positioned in the zone of the conductor arrays (LZ) forming an inductance, and is provided also on the wiring circuit board (WLP). The number of wiring circuit board layers is greater than those of the basic circuit board.