Diamond Copper Thermal Spreaders are made of diamond as the middle core which is sandwiched between the upper and lower layer of copper metal that are impregnated with synthetic diamond particles. Thermal conductivity of the composite material is not only much higher than the existing copper or aluminum thermal spreaders; its thermal expansion rate can be adjusted to the range that is close to that of semiconductor chip. The diamond copper thermal spreaders can be directly welded with semiconductor chips to avoid heat being blocked by the thermal grease. Energy demanding electronics using the diamond copper thermal spreaders can solve the problem of overheating.
Material                                                   DiCu (Diamond/Copper)
Coefficient of Thermal Expansion       6-9 ppm/℃
Thermal Conductivity                              500～650 W/mK
Gravity Ratio                                             5.5-7.0
Size                                                           Diameter: 37-100mm      
                                                                  Thickness: 0.5-3.0mm
Working Temperature                          < 360℃
Coating                                                   Silver、Nickel
Uses:
1. LED high power street lamps, car headlights board, far beyond the industries' existing materials
2. The CPU, GPU thermal spreaders in computer, the thermal conductivity and thermal expansion are far beyond the industries’ existing materials.
3. LED backlighting circuit boards on the large panel LCD TV.
4. Thermal spreaders for the electric vehicle motor converters.
Product social and economic significance：
Diamond's unique advantages extend the lifespan of high-power LED-related products, which are not only of academic value, but also with practical significance, in line with the world's cooling demand and the direction of energy savings reform, also helping promote the theory and mechanism innovation of science and technology in China and with major economic and social significance.