Pursuing supply chain security and a complete local ecosystem for China's electronic information industry is a step-by-step and difficult process. The initial level is the independent development and production of chips, and then the demand for domestic equipment is derived. But the facts show that even if the equipment can be made domestically, it is not enough. The United States sanctioned Chinese wafer manufacturing companies, and some Chinese equipment manufacturers had to succumb to the US ban. The root cause was their reliance on the United States for key components. Compared with the whole equipment, the market size of spare parts is not large, but it is indeed a typical bottleneck link that is made from small to large.
In 2020, the purchase amount of 8-inch and 12-inch front-end equipment parts (parts) for wafer lines in mainland China exceeded 1 billion US dollars. If the production lines of overseas manufacturers such as Samsung, Hynix, and*in mainland China are excluded, the purchase amount of Chinese local wafer manufacturers (mainly including SMIC, Hua Hong Group, China Resources Microelectronics, Yangtze River Storage, etc.) inch and 12-inch front equipment parts, the same below) is about 430 million US dollars. The equipment parts purchased by Chinese wafer manufacturers mainly include Quartz, RF Generator, various pumps, etc., accounting for 10% or more of the purchase amount of parts. In addition, the proportion of procurement of various valves (Valve), suction cups (Chuck), reaction chamber shower head (Shower Head), edge ring (Edge Ring) and other components is also relatively high.
Product structure of 8-12-inch wafer equipment parts purchased by Chinese wafer manufacturers in 2020
Among the main components mentioned above, the localization rate of more than 10% includes Quartz finished products, Shower head, Edge ring, etc., and the rest are relatively low in localization, especially Valve, Gauge, O-ring, etc. Totally depends on imports. According to the summary of Xinmou, parts with low localization rate generally meet one or more of the following characteristics:
1. For complex electronic and mechanical products, it is difficult to develop technology and requires high precision. For example, the RF generator is directly related to the plasma concentration and uniformity in the cavity. It is one of the most critical components of important machines such as Etch and PECVD. The main technical problem of domestic RF generators is that the parameters such as power supply voltage and frequency are not enough. It is stable and has a certain gap compared with foreign companies such as AE. Another example is Pump. Although China's Shenyang Scientific Instruments has become one of the main suppliers of dry pumps for wafer lines in China, the high vacuum level of semiconductors can only be achieved by cryopumps and turbopumps with higher prices, which is not the strength of Chinese manufacturers. The same is true for Gauge. The Chinese instrument industry can only meet the requirements of general vacuum measurement, but cannot meet the high-precision requirements of semiconductor technology.
2. High requirements for materials. Chinese manufacturers are stronger than machining and forming, but the material industry foundation is weak. Valve, Shower head, Ceramic and other parts, although Chinese manufacturers can make shapes according to the drawings, but often cannot solve the problems of materials and surface treatment, so the development is restricted by the foundation.
3. The market is small and fragmented. For example, Gauge, MFC, O-ring and other components not only have high requirements on precision and materials, but also the market size of semiconductor-level products is very small. Not only is the market size small, but some products have a wide variety of products, and the working principles of different types are significantly different. It is a market with typical fragmented characteristics, and Chinese manufacturers have insufficient interest and motivation.
8-12-inch wafer equipment parts suppliers and self-sufficiency rate
