An electronic package having enhanced heat dissipation is provided
exhibiting dual conductive heat paths in opposing directions. The package
includes a substrate having electrical conductors thereon and a flip chip
mounted to the substrate. The flip chip has a first surface, solder bumps
on the first surface, and a second surface oppositely disposed from the
first surface. The flip chip is mounted to the substrate such that the
solder bumps are registered with the conductors on the substrate. The
package further includes a stamped metal heat sink in heat transfer
relationship with the second surface of the flip chip. The heat sink
includes a cavity formed adjacent to the flip chip containing a thermally
conductive material.