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The process of isostatic graphite manufacturing is Selecting raw materials, Blending, Molding, Isostatic pressing, Carbonization, Graphitization. 

The application areas of SiC-based and Si-based GaN are not strictly separated. In GaN-On-SiC devices, the cost of SiC substrate is relatively high, and with the growing maturity of SiC long crystal technology, the cost of the device is expected to fall further, and it is used in power devices in the field of power electronics.

Isostatic graphite is a type of graphite with an ultra-fine grain. It is used for applications where the mechanical properties of other fine-grained graphites are inadequate.

Wafers are sliced from crystal rods, which are produced from polycrystalline and pure undoped intrinsic materials. The process of transforming polycrystalline material into single crystals through melting and recrystallization is known as crystal growth. Currently, two main methods are employed for this process: the Czochralski method and the zone melting method. Among these, the Czochralski method (often referred to as the CZ method) is the most significant for growing single crystals from melts. In fact, over 85% of single crystal silicon is produced using the Czochralski method.

One of the unique properties of semiconductor materials is that their conductivity, as well as their conductivity type (N-type or P-type), can be created and controlled through a process called doping. This involves introducing specialized impurities, known as dopants, into the material to form junctions on the surface of the wafer. The industry employs two main doping techniques: thermal diffusion and ion implantation.