with one another this precaution is usually taken to prevent electrochemically driven corrosion lower plate 11 also includes channels 17 therein into which heat pipe 20 is snugly inserted similar channels 17 are provided in upper or second thermally conductive plate 12 generally u shaped heat pipe 20 is inserted into tubular channels 17 in upper and lower plates 11 and 12 respectively the particular embodiment shown in fig1 provides for the inclusion of up to four heat pipes however the number employed is a matter of design choice it is seen in fig1 that there is provided a combined heat sink and heat pipe technology which is employed to achieve performance far beyond the capability of either device separately all of the performance advantages provided by a dense heat sink are provided however by utilizing a heat pipe to transport up to 40 of the heat to the top of the heat sink effective utilization of the upper fin region is dramatically improved in fact the net performance is improved almost to the same level that can be achieved by using a closed looped water based cooling system however the present system avoids pumps leaks and other problems associated with closed loop water systems in the arrangement shown in fig1 the heat pipes are u shaped and only require holes to be drilled in the base and top sections of heat sink 10 that is in plates 11 and 12 heat pipe 20 may in fact comprise any suitably bent commercial heat pipe while the embodiments shown in fig1 and 2 work in all orientations optimum performance is achieved when the module contacting thermal surface is physically beneath the top of the heat sink.