Patent ID: 7039381

Claim:
An on-chip differential inductor comprises: first interwound winding on a layer of an integrated circuit, wherein the first interwound winding has a substantially octagon shape, wherein a first node of the first interwound winding is coupled to receive a first leg of a differential signal and a second node of the first interwound winding is coupled to a reference potential, and wherein the first interwound winding has a substantially octagonal shape; and second interwound winding on the layer of the integrated circuit, wherein the second interwound winding has a substantially octagon shape that is interwound with the first interwound winding, wherein a first node of the second interwound winding is coupled to receive a second leg of the differential signal and a second node of the second interwound winding is coupled to the reference potential, and wherein the first interwound winding is substantially symmetrical to the second interwound winding.