In the competition between countries for computing power, domestic substitution is happening urgently, and semiconductor materials and equipment will be a very important part of domestic substitution. Whoever controls the equipment and materials will hold the key to independent computing power.

Here are the top 10 companies with the most potential for domestic substitution, listed in no particular order:
The first is SMIC, 688012. This company is an absolute leader in the etching equipment field. CCP and ICP plasma etching equipment have already been used in 5nm and below nodes, maintaining a top global ranking. Currently, its equipment is used for logic chips, memory chips, and power devices. It has a high success rate in advanced process validation. As fabs like SMIC and Changxin expand production, it is the most hardcore representative of domestic etching, with deep positioning and high barriers.
The second is Xinyuan Micro, 688037. This company specializes in photolithography process coating and developing equipment, as well as single-wafer wet processing equipment. It covers coating, developing, cleaning, stripping, and wet etching machines. It dominates the key front-end processes in integrated circuit manufacturing. With accelerated domestic substitution, driven by both advanced and mature processes, it will be an unmissable wet process leader for future mass production line expansion.
The third is Zhongke Feice, 688361. This company is a rising leader in semiconductor testing equipment, focusing on defect detection, metrology, and AOI in core stages. As advanced processes demand explosive growth in detection accuracy and speed, its technology has been widely deployed in wafer fabs. With the rise of AI chips and high-performance computing capacity, it is one of the pioneers in domestically controllable testing, with strong growth potential.
The fourth is Shengmei Shanghai, 688082. This company is an absolute leader in cleaning equipment. Its SAPS ultrasonic cleaning and supercritical CO₂ drying technology are globally advanced. Its market share in cleaning for storage and logic lines continues to grow. It boasts top-tier cleaning yields for advanced processes. With the dual benefits of fab expansion and domestic substitution, it quietly captures significant market share, with a solid position in wet cleaning.
The fifth is TuoJing Technology, 688072. This company excels in thin film deposition equipment (CVD/ALD/PECVD), holding high market share in production lines like Yangtze Memory Technologies. As AI chips and high-bandwidth memory demand explosive growth for dielectric films, it is a key supplier of deposition processes. Its technology evolves rapidly, and with penetration into domestic advanced processes, it remains well-fed long-term.
For reference only, investment involves risks. DYOR.