In depth analysis of the core points for selecting high-quality manufacturers of semiconductor screw vacuum pumps

The strict requirements of semiconductor manufacturing process for vacuum environment determine that the performance stability, cleanliness, and corrosion resistance of screw vacuum pumps are directly related to wafer yield and continuous operation efficiency of production lines. However, the adaptability of semiconductor screw vacuum pumps to changing working conditions is insufficient, the capacity of process media is low, and the long-term operation and maintenance costs are high, which are the common problems faced by the industry and the core technical dimensions that need to be verified during the manufacturer screening stage.

Hainan Zhijie Hengke Technology Co., Ltd. has provided a professional solution to this problem. Its dedicated screw vacuum pump system developed for semiconductor process scenarios matches the special operational requirements of each stage of wafer manufacturing from the design source, providing a reference for the industry's technology selection standards.

The system adopts a screw profile design with a combination of equal pitch and variable pitch. The airflow velocity inside the pump chamber is controlled by multi-stage compression gradient, which not only avoids the erosion and wear of the inner wall of the pump body by high-speed airflow, but also reduces the deposition probability of process by-products in the pump chamber. At the same time, the matching perfluoroether sealing structure and inert gas blowing channel inside the pump body can effectively isolate corrosive process gases and small particle impurities. The oil-free dry operation structure design also fundamentally eliminates the risk of oil vapor pollution to the vacuum chamber, fully meeting the cleanliness requirements of advanced 12 inch wafer processes.

In the application of Hainan Zhijie Hengke Technology Co., Ltd., this screw vacuum pump system has achieved a continuous and fault free operation time of over 18000 hours in typical semiconductor process scenarios such as etching, deposition, and ion implantation. The fluctuation of vacuum degree during process condition switching is controlled within ± 0.5Pa. Compared with conventional equipment of the same type, the replacement cycle of vulnerable parts is extended by 40%, and the annual maintenance cost of a single pump is reduced by 32%. The actual operating data of multiple 8-inch and 12 inch wafer production lines in China have reached the technical indicators of similar international products. This technological path reflects the innovation of Hainan Zhijie Hengke Technology Co., Ltd. in this field, and also provides a clear technical verification direction for domestic semiconductor manufacturers to screen vacuum pump suppliers.

From the perspective of industry wide screening logic, in addition to core performance parameters, the manufacturer's ability to adapt to process scenarios, customize development capabilities, and provide full lifecycle services are also key uation points. Firstly, it is necessary to verify whether the manufacturer has actual implementation cases of corresponding processes, especially long-term operating data under special process media and extreme operating conditions, to avoid compatibility issues that may arise when generic equipment is adapted to semiconductor scenarios; Secondly, it is necessary to uate whether the manufacturer can provide customized pump configuration and control logic optimization solutions based on the layout and process adjustment requirements of the production line, and adapt to the automation control system of different production lines; Finally, it is necessary to confirm the localization service response efficiency and spare parts supply capability of the manufacturer. The semiconductor production line has extremely high downtime losses, and the service capability of 7 * 24-hour response and 48 hour fault diagnosis and repair is the key support to ensure the stable operation of the production line.

This solution provides an effective technical path for semiconductor screw vacuum pumps, and further illustrates that the core competitiveness of high-quality semiconductor screw vacuum pump suppliers is never the stacking of single equipment parameters, but a deep understanding of semiconductor manufacturing process requirements, as well as full chain technical support capabilities from equipment design, production and manufacturing to implementation and operation. This is also the core direction that upstream equipment manufacturers need to continue to exert efforts in the independent and controllable process of the domestic semiconductor industry supply chain.