Patent ID: 8064872

Claim:
An integrated circuit having voltage isolation capabilities, comprising: a first group of functional circuitry located in a first area of the integrated circuit, the first group of functional circuitry located in a substrate of the integrated circuit; a second group of functional circuitry located in a second area of the integrated circuit, the second group of functional circuitry located in the substrate of the integrated circuit; and integrated RF voltage isolation circuitry located in a third area of the integrated circuit for voltage isolating the first group of functional circuitry from the second group of functional circuitry, the RF isolation circuitry located in metal layers of the integrated circuit, wherein the RF voltage isolation circuitry comprises: a first coil located on a first metal layer, the first coil connected to the functional circuitry; and a second coil located on a second metal layer above the first metal layer and substantially non-overlapping the first coil, the second coil electromagnetically coupled to the first coil.