Abstract: A low-profile coupled inductor is disclosed to provide compact and high performance magnetic coupling. The low-profile coupled inductor has an asymmetrical geometry, having a pair of complementary ferrite cores supporting a pair of conducting strips in an alternating serpentine pattern. One or more core gaps exist between the cores to create a strong flux coupling between adjacent magnetic fields of either conducting strip. The alternating serpentine conductors and core gaps serve to increase energy transfer between the magnetic fields and improve the overall power density of the low-profile coupled inductor.

Abstract: An electronic device and a method of forming such an electronic device are disclosed. The electronic device can include an integrated device package and a component. The integrated device package includes a substrate and a package body over the substrate, and a hole formed through the package body to expose a conductive pad of the substrate. The component is mounted over the package body, and includes a component body and a lead extending from the component body through the hole. The lead includes an insulated portion and a distal exposed portion, and the insulated portion includes a conductor and an insulating layer disposed about the conductor, wherein the distal exposed portion is uncovered by the insulating layer such that the conductor is exposed at the distal portion. The electronic device can also include a conductive material that electrically connects the distal exposed portion to the conductive pad of the substrate.