Patent ID: 9577024
Date: 2017-02-21
CPC Classifications: H01L

Claim:
1. An inductive device formed in a circuit structure comprising alternating conductive and insulating layers, the device comprising, in a plurality of the conductive layers, traces forming a respective pair of interleaved loops and at least one interconnect segment in each of the plurality of the conductive layers, wherein in each layer among the plurality of the conductive layers, at least one loop in the respective pair is closed by jumpers to an interconnect segment formed in another layer above or below the layer, and the interconnect segment in each layer crosses another interconnect segment in another layer above or below the layer, such that the interconnect segments intersect one another so as to pass in different directions in different ones of the plurality of conductive layers so as to create two interleaved coils, which spiral through the layers of the device to a final metal layer where the coils are connected one to the other in series.