Patent ID: 7723129
Filing Date: 2010-05-25
Classification: H01F,H01L

Abstract:
1. A method for fabricating an electronic device comprising the steps of: providing a semiconductor chip having an area, an active surface including a first and a second set of terminals, and a passive surface; providing a substrate having contact pads; attaching the passive chip surface to the substrate; providing a body containing ferromagnetic material including a flat area smaller than the chip area; attaching the flat body area to the active chip surface; providing a bonder wire having a first and a second end; wrapping the bonder wire around the body by means of a semiconductor wire bonder to form at least a portion of a loop; connecting the first and second bonder wire ends to the first set terminals; connecting the second set terminals to the contact pads; and encapsulating the assembled chip, ferromagnetic body and electrical connections in an insulating compound.