Patent ID: 7382219

Claim:
An inductor structure, disposed on a substrate, comprising: a first helix winding, at least comprising a first exterior wire and a first interior wire, wherein the first exterior wire is connected with the first interior wire in series, and the first interior wire rotates in helical fashion towards a central portion of a helical structure of the first helix winding; a second helix winding, intercoiled with the first helix winding about a symmetric plane, the second helix winding at least comprising a second exterior wire and a second interior wire, wherein the second exterior wire and the second interior wire are connected in series, and the second interior wire rotates in helical fashion towards a central portion of a helical structure of the second helix winding and is connected with the first interior wire; and a shielding structure, comprising: a first shielding layer, disposed between the first exterior wire and the substrate corresponding to a projection of the first exterior wire; and a second shielding layer, disposed between the second exterior wire and the substrate corresponding to a projection of the second exterior wire, wherein the first shielding layer and the second shielding layer are grounded individually, and are in symmetry about the symmetric plane.