Group 1 - Jiangsu Weidao Nano Technology Co., Ltd. applied for a patent titled "A semiconductor production equipment and its control method, control device," with publication number CN120443149A, and the application date is May 2025 [1] - The patent describes a control method that includes obtaining the actual film thickness d of a substrate, calculating the difference between the actual film thickness d and the designed film thickness d0 to obtain the actual film thickness difference △d, and obtaining the actual temperature T in the reaction chamber [1] - The method further involves calculating the temperature difference △T, determining the first film thickness difference △d1 influenced by temperature, and calculating the second film thickness difference △d2 to adjust the flow rate of process gas for the next production cycle [1] Group 2 - Jiangsu Weidao Nano Technology Co., Ltd. was established in 2015 and is located in Wuxi City, primarily engaged in specialized equipment manufacturing [2] - The company has a registered capital of 457.678129 million RMB and has made investments in 2 enterprises, participated in 47 bidding projects, and holds 89 trademark records and 527 patent records [2] - Additionally, the company possesses 68 administrative licenses [2]

Core Viewpoint - The semiconductor industry in China is experiencing significant growth in equipment procurement, indicating a strong investment trend among domestic manufacturers [2] Group 1: Equipment Procurement Data - In the past year, Chinese manufacturers purchased semiconductor production equipment worth $49.55 billion, a substantial increase from $36.6 billion in 2023, representing a year-on-year growth of 35% [2] - South Korea, with major players like Samsung Electronics and SK Hynix, ranked second in equipment purchases, totaling $20.47 billion, up from $19.94 billion in 2023, marking a 3% increase year-on-year [2] - North American manufacturers, including Intel, spent $13.69 billion on equipment, an increase from $12.05 billion in 2023, reflecting a 14% year-on-year growth [2] - Japanese manufacturers purchased $7.83 billion worth of equipment, a slight decline of 1% from $7.93 billion in 2023 [2] - European manufacturers saw a significant drop, with purchases totaling $4.85 billion, down 25% from $6.46 billion in 2023 [2]