Shielding structure for integrated inductor/transformer

A shielding structure for integrated inductor/transformer, used in an inductor or a transformer, configured under the inductor or the transformer and upon a substrate, comprising:

• a plurality of conductive units, comprising a first conductive unit, a second conductive unit, a third conductive unit and a fourth conductive unit, each conductive unit comprising a first conductive sub-unit and a second conductive sub-unit, both of the first conductive sub-unit and the second conductive sub-unit comprising a first conductive portion and a plurality of second conductive portions extending from the first conductive portion, the number of the second conductive portions being odd, the length of each second conductive portion progressively diminishing along the first conductive portion, wherein the longest second conductive portion of the first conductive sub-unit and the longest second conductive portion of the second conductive sub-unit are connected;
• a plurality of first connecting portions, configured to connect the first conductive unit and the second conductive unit and to connect the third conductive unit and the fourth conductive unit;
• and
• a grounding portion;
• wherein the first conductive portion of the first conductive sub-unit of the first conductive unit is connected to the first conductive portion of the second conductive sub-unit of the fourth conductive unit and the grounding portion is connected to where these two first conductive portions are connected, or the first conductive portion of the second conductive sub-unit of the second conductive unit is connected to the first conductive portion of the first conductive sub-unit of the third conductive unit and the grounding portion is connected to where these two first conductive portions are connected.