Aluminum plate has the following unique advantages: 1, in line with RoHs requirements; 2, more adapted to the SMT technology; 3, the circuit design of the thermal diffusion process is extremely efficient, thereby reducing the module operating temperature, long life, increase power density and reliability; 4, reducing the radiator, and other hardware (including thermal interface material) assembly, smaller footprint, lower hardware and assembly costs; 5, power circuits and control circuits optimized combination; 6, replace the fragile ceramic substrates, so it can get very good mechanical ability.