Patent ID: 7248138
Filing Date: 2007-07-24
Classification: H01F

Abstract:
1. An electromagnetic component comprising: a plurality of conductive traces having a curved shape and two terminal ends, each conductive trace formed on an insulating layer and positioned such that said conductive traces form a multi-layer PCB stack, wherein a first one of said conductive traces is formed on the top surface of said PCB stack and a second one of said conductive traces is formed on the bottom surface of said PCB stack; a plurality of conductors for interconnecting the terminal ends of each said conductive trace to form at least one turn of a winding; a first separate conductive layer attached to a first outer surface of said PCB stack in a position at the top of said PCB stack and having two terminal ends and approximately the same shape as said conductive traces; a first additional conductor for connecting at least one of said first separate conductive layer terminal ends to a terminal end of at least one of said conductive traces; a second separate conductive layer attached to a second outer surface of said PCB stack in a position at the bottom of said PCB stack and having two terminal ends and approximately the same shape as said conductive traces; and a second additional conductor for connecting at least one of said second separate conductive layer terminal ends to a terminal end of at least one of said conductive traces.