How do you recommend heatsinking EPC's wafer level chip scale packages?

How do you recommend heatsinking EPC’s wafer level chip scale packages? Would you interface a heatsink or cooling plate to the PCB or can you interface it directly to the device?

The EPC GaN products have the advantage of top side cooling along with the very intimate connection and thermal path through the board. Please see the webinar Thermal Management of GaN FETs