Spiral-shaped closed magnetic core and integrated micro-inductor comprising one such closed magnetic core

摘要

The closed magnetic core is designed for use for an integrated micro-inductor. The magnetic core has the form of a spiral preferably substantially rectangular spiral. The spiral comprises two ends joined to one another by a closing segment. The magnetic core can be formed by a plurality of branches and at least two branches can be arranged in different parallel planes. In addition, two branches can have different thicknesses. The magnetic core can comprise an air-gap.