As shown in FIGS. 1-3, assembly 10 further includes a seal (or gasket) 18 extending between first and second substrates 14 and 16 so as to define a closed region therebetween that is hereinafter referred to as a ???sealed chamber.??? Within the sealed chamber is a liquid, gel, or other material that is either moderate to highly thermally conductive, moderate to highly convective, or both.