Patent attributes
An integrated stacked transformer includes a primary winding, a secondary winding and a plurality of bridges, wherein the primary winding is formed by a first metal layer and includes a plurality of segments that are not electrically connected to each other; the secondary winding is form by a second metal layer and includes a plurality of segments that are not electrically connected to each other; the plurality of bridges are formed by a third metal layer. A portion of the bridges is connected to the segments of the primary winding respectively to make the segments of the primary winding form a primary inductor; and another portion of the bridges is connected to the segments of the secondary winding respectively to make the segments of the secondary winding form a secondary inductor.