A heat spreader including a body having a first conduction value and a first electromagnetic interference shield value. The heat spreader further includes a conduction enhancement affixed to the body, the conduction enhancement having a second conduction value greater than the first conduction value and a second electromagnetic interference shield value less than the first electromagnetic interference shield value. At least a portion of the conduction enhancement is positioned relative to the body for increasing an effective electromagnetic interference shield value of the body associated with the at least a portion of the conduction enhancement.