Patent ID: 9208938
Filing Date: 2015-12-08
Classification: H01F

Abstract:
1. An inductor structure comprising: a substrate; an insulation layer overlying the substrate; a conductive winding overlying the substrate within the insulation layer, the conductive winding wrapped around itself to form a plurality of turns substantially concentric about a central axis, wherein the insulation layer and the conductive winding are located on a same level in the inductor structure; an insulating support structure containing an air gap, the air gap surrounding the plurality of turns of the conductive winding and the insulation layer; and a plurality of insulation pockets located radially inside a radially innermost turn in the plurality of turns with respect to the central axis, wherein the plurality of insulation pockets are all located on the same level in the inductor structure as the insulation layer and the conductive winding.