A heat spreader for use in a memory system is provided, including a thermally conductive body having a first planar side surface and a second planar side surface opposite the first planar side surface, the first planar side surface configured to attach to a first plurality of co-planar semiconductor devices of a first memory module of the memory system, the second planar side surface configured to attach to a second plurality of co-planar semiconductor devices of a second memory module of the memory system, wherein the first planar side surface and the second planar side surface are separated by a body width w substantially equal to a distance between the first plurality of co-planar semiconductor devices and the second plurality of co-planar semiconductor devices.