Patent ID: 9111676
Filing Date: 2015-08-18
Classification: H01F

Abstract:
1. A parallel stacked symmetrical and differential inductor, disposed on a substrate, comprising: a first conductive layer disposed on a first insulating layer; more than one subsequent conductive layers, each of the more than one subsequent conductive layers disposed on a corresponding one of more than one subsequent insulating layers stacked under the first conductive layer; wherein the first conductive layer and the more than one subsequent conductive layers are electrically connected by a first plurality of conductive plugs in a winding region; and each of the more than one subsequent conductive layers are electrically connected by a second plurality of conductive plugs in a bridge region; wherein, the first conductive layer comprises a first winding portion and a second winding portion, each winding portion comprising a plurality of nested traces in the winding region, and a plurality of electrical winding cross-connects in the bridge region; and wherein, the more than one subsequent conductive layers comprise a third winding portion and a fourth winding portion, each winding portion comprising a plurality of nested traces in the winding region and a plurality of electrical bridge cross-connects in the bridge region; further comprising a bridge conductive layer on a bridge insulating layer stacked under the more than one subsequent conductive layers wherein the bridge conductive layer is electrically connected to the more than one subsequent conductive layers by a third plurality of conductive plugs in the bridge region, wherein the bridge conductive layer is disposed only in the bridge region.