Patent ID: 8791784
Filing Date: 2014-07-29
Classification: H01L,Y10T

Abstract:
1. A semiconductor device, comprising: a substrate having a surface that is defined by a first axis and a second axis that is perpendicular to the first axis; and a transformer disposed over the surface of the substrate, the transformer including a first coil and a second coil, the first and second coils having respective winding orientations that are non-parallel to the surface of the substrate, wherein: the transformer is implemented within an interconnect structure that is disposed over the substrate, the interconnect structure having a plurality of interconnect layers; the first coil includes a plurality of first interconnect lines that are disposed in a first subset of interconnect layers and that are interconnected together by a plurality of first vias, the first coil including a first port defined by adjacently-located first and second distal ends of the first coil; the second coil includes a plurality of second interconnect lines that are disposed in a second subset of interconnect layers and that are interconnected together by a plurality of second vias, the second coil including a second port defined by adjacently-located third and fourth distal ends of the second coil; at least some of the first interconnect lines belonging to different interconnect layers are vertically aligned with one another; and at least some of the second interconnect lines belonging to different interconnect layers are vertically aligned with one another.