碳化硅产业链 突现新风口

Core Viewpoint - The A-share silicon carbide sector is experiencing a significant uptrend, with notable stock price increases for companies like Tianyue Advanced and Tianfu Energy, with Tianyue Advanced's stock rising over 40% from September 5 to September 12 [1] Industry Developments - TSMC is actively seeking equipment manufacturers and compound semiconductor companies to participate in its plans to use 12-inch single crystal silicon carbide (SiC) for thermal substrates, replacing traditional materials like alumina and sapphire [3] - NVIDIA is also planning to use silicon carbide substrates as intermediary materials in the advanced packaging of its next-generation GPU chips [3] Material Advantages - Silicon carbide is favored due to its superior thermal conductivity, which is approximately 400-500 W/mK, nearly double that of traditional ceramic substrates, making it suitable for high-performance AI chips and data centers [4] - The increasing power demands of GPU chips necessitate better thermal management solutions, which silicon carbide can provide, potentially reducing the size of heat sinks and overall packaging [6] Production and Supply Chain - Wolfspeed has announced the large-scale commercialization of its 200mm (8-inch) silicon carbide products, while Tianyue Advanced has been producing 8-inch silicon carbide wafers for two years and is the first to release 12-inch silicon carbide substrates [7] - Companies like Hoshine Silicon Industry have achieved full-scale production of 6-inch silicon carbide substrates with high crystal and epitaxial yield rates, and are progressing well with 12-inch substrate development [9] - Jingsheng Electromechanical has also reported successful mass production of 6-8 inch silicon carbide substrates and breakthroughs in 12-inch conductive silicon carbide single crystal growth technology [10] Equipment and Applications - Companies are developing silicon carbide wafer defect detection equipment and semiconductor cleaning equipment, with ongoing research into various semiconductor-related devices [12] - Beyond chip packaging, silicon carbide is being explored for applications in optical waveguides and AR industry materials, with companies actively developing different material processes [12]