Vertical current transport in a power converter circuit

A method of manufacturing a power converter circuit comprising:

• forming an integrated circuit including a first power stage portion of the power converter circuit, wherein forming the integrated circuit comprises:
• forming in a first substrate a first switch circuit portion including a first plurality of lateral devices;
• and
• forming in the first substrate a second switch circuit portion including a second plurality of lateral devices;
• forming an array of conductor structures on a surface of the integrated circuit;
• and
• forming a multi-layer current routing structure configured to transport a first current between the first plurality of lateral devices and the array of conductor structures using a first substantially vertical conduction path when the first switch circuit portion is enabled and configured to transport a second current between the second plurality of lateral devices and the array of conductor structures using a second substantially vertical conduction path when the second switch portion is enabled.

An apparatus comprising:

• a first switch portion of a power converter circuit;
• a second switch portion of the power converter circuit;
• a plurality of conductor means;
• and
• vertical transport means for vertically transporting current between the first switch portion and the plurality of conductor means when the first switch portion is enabled and for vertically transporting current between the second switch portion and the plurality of conductor meanswhen the second switch portion is enabled.