Patent 7655870 was granted and assigned to Hon Hai Precision Industry Co Ltd on February, 2010 by the United States Patent and Trademark Office.
An exemplary printed circuit board includes a power plane, and a ground plane. The power plane includes two power modules, and an insulating medium for insulating the two power modules from each other. The ground plane is insulated from the power plane, a plurality of slots is defined in the ground plane and located close to facing edges of the two power modules, and the slots are arranged in rows along the facing edges of the two power modules.