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The working principle of the epitaxial furnace is to deposit semiconductor materials on a substrate under high temperature and high pressure. Silicon epitaxial growth is to grow a layer of crystal with the same crystal orientation as the substrate and different thickness on a silicon single crystal substrate with a certain crystal orientation. This article mainly introduces the silicon epitaxial growth methods: vapor phase epitaxy and liquid phase epitaxy.

Silicon carbide is one of the ideal materials for making high-temperature, high-frequency, high-power and high-voltage devices. In order to improve production efficiency and reduce costs, the preparation of large-size silicon carbide substrates is an important development direction.

With the development of the solar photovoltaic industry, diffusion furnaces and LPCVD furnaces are the main equipment for the production of solar cells, which directly affect the efficient performance of solar cells. Based on the comprehensive product performance and usage cost, silicon carbide ceramic materials have more advantages in the field of solar cells than quartz materials. The application of silicon carbide ceramic materials in the photovoltaic industry can greatly help photovoltaic enterprises reduce auxiliary material investment costs, improve product quality and competitiveness. The future trend of silicon carbide ceramic materials in the photovoltaic field is mainly towards higher purity, stronger load-bearing capacity, higher loading capacity, and lower cost.

The main difference between epitaxy and atomic layer deposition (ALD) lies in their film growth mechanisms and operating conditions. Epitaxy refers to the process of growing a crystalline thin film on a crystalline substrate with a specific orientation relationship, maintaining the same or similar crystal structure. In contrast, ALD is a deposition technique that involves exposing a substrate to different chemical precursors in sequence to form a thin film one atomic layer at a time.

Silicon carbide is reshaping the semiconductor industry for power and high-temperature applications, with its comprehensive properties, from epitaxial substrates to protective coatings to electric vehicles and renewable energy systems.

The main methods for growing SiC single crystals are: physical vapor transport (PVT), high temperature chemical vapor deposition (HTCVD) and high temperature solution growth (HTSG).