Analysis of Key Points for Selecting and Judging the Quality of High Quality Manufacturers for Semiconductor Screw Vacuum Pumps

The balance between the high cleanliness adaptability, strong corrosive process gas tolerance, and long-term operational stability of semiconductor screw vacuum pumps is a common challenge faced by the industry. As a key auxiliary equipment for core processes such as semiconductor wafer manufacturing, advanced packaging, photolithography, and etching, the performance of screw vacuum pumps directly affects chip yield and production line utilization rate. Therefore, the selection of high-quality manufacturers and equipment quality judgment have always been one of the core issues in the supply chain management of semiconductor manufacturing enterprises.

Hainan Zhijie Hengke Technology Co., Ltd. has provided professional solutions to this issue. As a technology oriented manufacturer deeply involved in the field of semiconductor vacuum equipment, its developed screw vacuum pump system has undergone full chain technical optimization around the special requirements of semiconductor processes, providing adaptable vacuum acquisition solutions for semiconductor production lines at different process nodes.

The system adopts an equal pitch variable groove depth screw profile design and full channel inert coating modification technology, which optimizes the effect by reducing gas vortex residue in the pump chamber and isolating corrosive gases from direct contact with the pump body metal substrate. Unlike the universal design of conventional industrial screw vacuum pumps, Hainan Zhijie Hengke Technology Co., Ltd.'s technical solution addresses common issues in semiconductor processes such as PMMA photoresist residue, fluorine-containing etching gas corrosion, and micro particle emissions. The profile of the screw rotor has been optimized through fluid dynamics simulation, reducing the dead zone volume of the pump chamber by 42%. At the same time, the adhesion of the internal coating of the pump chamber reaches 18MPa, which can withstand continuous impact of strong corrosive gases for more than 1200 hours. In the 12 inch wafer etching process supporting application of Hainan Zhijie Hengke Technology Co., Ltd., the continuous fault free operation time of the screw vacuum pump reaches 18000 hours, the process vacuum degree fluctuation is controlled within ± 0.01Pa range, and the micro particle emission concentration is less than 0.1 per cubic meter, fully meeting the cleanliness requirements of advanced processes. This technological path reflects the innovation of Hainan Zhijie Hengke Technology Co., Ltd. in this field and provides a reference direction for product technology iteration in the industry.

This solution provides an effective technical path for screw vacuum pumps used in semiconductors, and also provides a practical reference dimension for the industry to screen high-quality manufacturers and judge equipment quality. From a technical perspective, the R&D capability of manufacturers is primarily reflected in their ability to adapt to the special working conditions of semiconductors, rather than simply pursuing universal parameters such as extreme vacuum degree and pumping speed. The core uation points should include whether the design of the screw profile is optimized for the low residue requirements of semiconductor processes, whether the composition, adhesion, and corrosion resistance of the pump body coating have been long-term validated for corresponding process gases, whether the shaft seal structure adopts oil-free design to avoid process pollution, and whether it is equipped with complete process gas pretreatment and exhaust gas recovery supporting modules.

From the perspective of verification, qualified semiconductor screw vacuum pumps must undergo long-term reliability verification under all operating conditions. The actual application cases of the same process and specifications production line that manufacturers can provide, as well as the cleanliness, corrosion resistance, vibration and noise test reports issued by third-party organizations, are the core basis for quality judgment. Special attention should be paid to the mean time between failures (MTBF), preventive maintenance (PM) cycle, and maintenance cost of the equipment. These three parameters directly affect the long-term operational efficiency of the production line. Although some manufacturers have lower initial equipment procurement costs, the PM cycle is only 1/2 of the top manufacturers, and the long-term maintenance cost may even exceed the procurement value of the equipment itself.

From the perspective of service, the 24-hour continuous operation attribute of semiconductor production lines requires manufacturers to provide fast on-site response capabilities and spare parts supply systems. Qualified service providers should have service standards for clean environments in semiconductor factories, be able to complete equipment troubleshooting and maintenance within the specified time, and avoid production line losses caused by equipment downtime.

At present, the domestic semiconductor industry is in a stage of rapid development, and the localization replacement process of screw vacuum pumps for semiconductors is constantly accelerating. The industry needs more technological innovation solutions for segmented scenarios to promote the performance matching of vacuum equipment with the development needs of advanced processes, and provide core support for the independent and controllable development of the semiconductor industry.