Patent ID: 7705421

Claim:
A semiconductor die comprising: a substrate having a top surface; and a metal interconnect structure that contacts the top surface of the substrate, the metal interconnect structure having: a dielectric material; a number of metal segments that touch the dielectric material, each metal segment having a lower end and an upper end, the number of metal segments being spaced apart and including a first metal segment, a second metal segment, and a third metal segment, the first, second, and third metal segments each having a first side region, a second side region opposite the first side region, a third side region, and a fourth side region opposite the third side region; a number of lower metal straps, each lower metal strap electrically connecting together the lower end of a metal segment and the lower end of an adjacent metal segment, a lower metal strap directly touching the lower end of the first metal segment and the lower end of the second metal segment; a number of upper metal straps, each upper metal strap electrically connecting together the upper end of a metal segment and the upper end of an adjacent metal segment, an upper metal strap directly touching the upper end of the second metal segment and the upper end of the third metal segment, a continuous electrical path extending from a first end to a second end through each metal segment, each lower metal strap, and each upper metal strap; and a trace that touches the dielectric material and lies substantially only parallel to the top surface of the substrate, the trace including a magnetic material, having a plurality of turns that wind between the number of metal segments, and enclosing three of the four side regions of each of the first, second, and third metal segments.