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There are six classifications for semiconductors, which are classified by product standard, processing signal type, manufacturing process, usage function, application field, and design method.

Epitaxial wafer process is a critical technique used in semiconductor manufacturing. It involves the growth of a thin layer of crystal material on top of a substrate, which has the same crystal structure and orientation as the substrate. This process creates a high-quality interface between the two materials, allowing for the development of advanced electronic devices.

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

The third-generation wide bandgap semiconductor materials, such as Gallium Nitride (GaN) and Silicon Carbide (SiC), are renowned for their exceptional optoelectronic conversion and microwave signal transmission capabilities. These materials meet the demanding requirements of high-frequency, high-temperature, high-power, and radiation-resistant electronic devices. Therefore, they have vast application prospects in new-generation mobile communications, new energy vehicles, smart grids, and LED technologies. The comprehensive development of the third-generation semiconductor industry urgently requires breakthroughs in key core technologies, continual advancement in device design and innovation, and a resolution to import dependencies.

The annealing process, also known as Thermal Annealing, is a crucial step in semiconductor manufacturing.