Copper Foil sputtered Graphite Thermal Film VS Artificial Graphite

The following heat dissipation material comparison chart is the experimental comparison result between Topnano and the cooperating die-cutting manufacturer, and is for reference only.



Artificial graphite and Graphite copper foil>

 Artificial graphite sheet 
Artificial graphite sheet is a heat dissipation material commonly used in thin electronic products such as smartphones. Its advantage is that it has a good heat dissipation effect on the xy-axis level. However, due to the limitation of manufacturing technology, the effect of each brand varies greatly.
 
At present, it is known that the artificial graphite sheets of Japanese brands have the best effect on the market, but unfortunately they are expensive.

In addition, in the die-cutting process and other processing four corner edges will fall off the powder, the need to do more edge processing, etc., time-consuming and generate excess loss.
 
Sometimes the processing fee and die-cutting management fee are more expensive than the material itself, which is a problem criticized by the die-cutting factory industry

Copper Foil sputtered Graphite Thermal Film

Topnano's Copper Foil sputtered Graphite Thermal Film is a composite material that uses copper foil as the base material to sputter a layer of nano-scale graphite, which has both the metal uniform temperature effect of copper foil and the horizontal heat dissipation effect of graphite.
 
The cooling effect of copper foil material on the z-axis vertically is quite remarkable. Putting the copper side on the heat source can bring the heat down vertically, and then with nano carbon to produce the effect of flat heat dissipation.

Compared with artificial graphite sheets, in addition to the processing characteristics, the Copper Foil sputtered Graphite Thermal Film is only nanometer-level in thickness, and the heat dissipation effect on the xy axis is slightly worse than that of artificial graphite.

But it is strong in the vertical cooling characteristics of the z-axis of the copper foil, combined with the xy-axis nano-graphite on the lower layer, the overall heat dissipation effect is still good.

For Topnano’s Copper Foil sputtered Graphite Thermal Film product details, please click on the bottom line on the left for reference. Or go to the Product Introduction/Graphite Copper Foil Thermal Film page to watch.