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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.

Silicon carbide (SiC), as an important high-end ceramic material, has excellent properties such as high-temperature resistance, corrosion resistance, wear resistance, high-temperature mechanical strength, and oxidation resistance. These properties make it highly promising for applications in high-tech fields such as semiconductors, nuclear energy, defense, and space technology.

The wafer boats, loaded with a batch of wafers to be processed, are positioned on long cantilevered paddles.

To achieve the high-quality requirements of IC chip circuit processes with line widths smaller than 0.13μm to 28nm for 300mm diameter silicon polishing wafers, it is essential to minimize contamination from impurities, such as metal ions, on the wafer's surface.

This paper provides a comprehensive overview of the various manufacturing techniques employed to produce dense SiC ceramics, highlighting their unique characteristics and applications.