Patent ID: 8531002

Claim:
An apparatus, comprising: an integrated circuit die with power regulation circuitry fabricated thereon; a switching node contact in electrical connection with the power regulation circuitry on the integrated circuit; an interconnect dielectric layer formed over the power regulation circuitry and the switching node contact of the integrated circuit; a plated plurality of magnetic core inductor members formed on the interconnect dielectric, arranged in a chevron shaped pattern in each of the four corners of the integrated circuit die; a multi turn inductor coil formed over the plurality of magnetic core inductor members, wherein the plurality of magnetic core inductor members are laminations perpendicular to the direction of current flow through the inductor coil at each intersection of the inductor coil and the plurality of magnetic core inductor members; a second dielectric layer formed over the inductor coil; and a plated magnetic layer formed over the second dielectric, wherein the plated magnetic layer is formed over but not under the inductor coil in a pattern of concentrically formed shapes one within the other and at differing distances from a common center point, and wherein no plated magnetic layer is formed under the inductor coil.