US Patent No. 9,883,590

SHIELDING STRUCTURE FOR INTEGRATED INDUCTOR/TRANSFORMER


Patent No. 9,883,590
Issue Date January 30, 2018
Title Shielding Structure For Integrated Inductor/transformer
Inventorship Kai-Yi Huang, Taipei (TW)
Hsiao-Tsung Yen, Hsinchu (TW)
Tai-Sheng Chen, Hsinchu (TW)
Assignee REALTEK SEMICONDUCTOR CORP., Hsinchu (TW)

Claim of US Patent No. 9,883,590

1. 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.