32 are attached to the corners of a heat sink 34 next lead frame 10 shown in fig2 having support leads 18 is aligned with and placed on top of heat sink 34 a tig welder or other similar welding mechanism not shown is used to weld support leads 18 to pillows or spacing pads 32 the welds may be spot welds but continuous welds should be used when maximum support is desired fig2 is a side sectional view of the device of fig2 positioned and attached to the device of fig1 along the section lines 8 8 of fig2 fig2 is a side sectional view of the device of fig2 positioned and attached to the device of fig1 along the section lines 9 9 of fig2 one advantage of this embodiment of the invention is that it is not necessary to insulatively coat or layer heat sink 34 since lead fingers 12 are spaced from and do not overlap heat sink 34 another advantage is that pillows or spacing pads 32 may be used as alignment aids when attaching the lead frame to the heat sink in yet still another embodiment of the invention shown in fig2 pillows or spacing pads 32 are spaced from one another and attached to a major surface of heat sink 36 this embodiment is recommended when the lead fingers will overlap the surface of the heat sink next lead frame 10 shown in fig2 having support leads 18 is aligned with and placed on top of heat sink 36 a tig welder or other similar welding mechanism not shown is used to weld support leads 18 to pillows or spacing pads 32 the welds may be spot welds but continuous welds should be used when maximum support is desired fig2 is.