HIGH EFFICIENCY ON-CHIP 3D TRANSFORMER STRUCTURE

摘要

An integrated circuit transformer structure includes at least two conductor groups stacked in parallel in different layers. A first spiral track is formed in the at least two conductor groups, the first spiral track included first turns of a first radius within each of the at least two conductor groups, and second turns of a second radius within each of the at least two conductor groups, the first and second turns being electrically connected. A second spiral track is formed in the at least two conductor groups, the second spiral track including third turns of a third radius within each of the at least two conductor groups and disposed in a same plane between the first and second turns in each of the at least two conductor groups.

主权项

1. An integrated circuit transformer structure, comprising:
at least two conductor groups stacked in parallel in different layers; a first spiral track formed in the at least two conductor groups, the first spiral track including:
first turns of a first radius within each of the at least two conductor groups, andsecond turns of a second radius within each of the at least two conductor groups, the first and second turns being electrically connected; and a second spiral track formed in the at least two conductor groups, the second spiral track including third turns of a third radius within each of the at least two conductor groups and disposed in a same plane between the first and second turns in each of the at least two conductor groups, wherein one of the first turns is electrically connected to one of the second turns through a connection that is electrically isolated from one of the third turns.