A thermal transfer apparatus for cooling a heat-producing electronic
component includes an evaporator disposed over the heat-producing
electronic component and thermally coupled to the heat-producing
electronic component, a plurality of heat pipes carrying a working fluid
therein disposed over the evaporator and thermally coupled to the
evaporator, a cold plate thermally coupled to a first end of the
plurality of heat pipes, and a condenser thermally coupled to a second
end of the plurality of heat pipes. The heat pipes extend over the
evaporator such that the first end and the second end of the heat pipes
couple to the cold plate and condenser at a location not over the
heat-producing electronic component. The cold plate and the condenser are
supplied with a coolant from outside the thermal transfer apparatus.