In the ultra-high vacuum chambers and precision transfer manipulators of high-end semiconductor wafer manufacturing equipment (such as lithography machines, ion implanters, and CVD/PVD thin-film deposition equipment), high-vacuum semiconductor bearings play an absolutely core role in ensuring nanometer-level process yield and stable equipment operation. Semiconductor manufacturing has extremely stringent requirements for bearing cleanliness, low outgassing, radiation resistance, and dimensional stability. Any minute particle release or grease volatilization can contaminate expensive wafers, causing entire batches of products to be scrapped. As process technology advances to the 3nm node and below, traditional bearings are highly susceptible to material embrittlement and lubrication failure under strong radiation and high-vacuum environments. Equipment manufacturers urgently need high-vacuum bearings customized for semiconductor scenarios, featuring ultimate low outgassing and radiation-resistant characteristics.

Facing the stringent requirements of wafer manufacturing for "absolute cleanliness" and "nanometer-level precision," support systems must not only possess extremely high mechanical rigidity but also achieve zero particle release and perfect dimensional retention in extreme vacuum environments. Under strong radiation environments, the internal grease of traditional bearings easily undergoes carbonization or volatilization. The generated gas molecules can destroy the vacuum degree, while radiation-induced lattice damage to materials can cause micro-dimensional changes in bearings, directly affecting lithography alignment accuracy. The market urgently demands a semiconductor equipment bearing solution that can break through the dual bottlenecks of vacuum outgassing and radiation damage, achieving high cleanliness and high stability, providing solid protection for various high-end chip manufacturing equipment.

NMT High-Vacuum Semiconductor Bearings are born to conquer the extreme transmission challenges of wafer manufacturing equipment. This series adopts a special low-outgassing material system, combined with an all-solid self-lubricating design or special fluorine grease with extremely low saturated vapor pressure, achieving zero volatilization and zero outgassing at a high vacuum degree of 10⁻⁷ Pa, completely eliminating molecular contamination within the vacuum chamber. Meanwhile, for high-radiation conditions such as ion implantation, NMT performs anti-radiation lattice strengthening treatment on the bearing rings and rolling elements, effectively resisting material embrittlement and dimensional distortion caused by high-energy particle bombardment. Combined with nano-level ultra-precision raceway grinding technology, NMT bearings still maintain extremely low friction torque and perfect rotational accuracy in extreme environments, ensuring absolutely smooth wafer transfer.

In precision manufacturing and quality control, NMT enforces semiconductor-grade stringent standards for every component of its high-vacuum semiconductor bearings. All components undergo cleaning and assembly in a Class 100 cleanroom and are subjected to 100% vacuum outgassing rate testing, rotational accuracy, and radiation-resistance performance evaluation. Any products with minute defects are eliminated. Through special low-outgassing material selection, anti-radiation structural strengthening, and precision assembly processes, NMT comprehensively improves the vacuum adaptability of the bearings, ensuring that they always maintain stable performance and precise dimensions under extreme radiation and vacuum conditions, guaranteeing high consistency and high reliability of batch products, and completely eliminating the operational hazards of wafer manufacturing equipment.

With rich specifications, these bearings are widely used in lithography machine workpieces stages, ion implanters, CVD/PVD thin-film deposition equipment, wafer transfer manipulators, semiconductor etching equipment, and high-vacuum molecular pumps, satisfying the supporting needs of various high-vacuum, low-outgassing, and radiation-resistant transmission nodes.

Core Product Advantages

Special low-outgassing materials and all-solid self-lubricating design achieve zero volatilization and zero outgassing at 10⁻⁷ Pa high vacuum, completely eliminating molecular contamination;

Anti-radiation lattice strengthening treatment effectively resists material embrittlement and dimensional distortion caused by high-energy particle bombardment, ensuring ultra-long life under conditions such as ion implantation;

Nano-level ultra-precision raceway grinding technology maintains extremely low friction torque and perfect rotational accuracy in extreme vacuum and radiation environments, ensuring absolutely smooth wafer transfer;

Full-process quality control and 100% vacuum outgassing rate full inspection ensure precise dimensions and stable performance of each bearing in ultra-high vacuum chambers;

Special fluorine grease or solid lubrication technology withstands extreme temperatures without hydrocarbon precipitation, perfectly adapting to the stringent cleanliness standards of semiconductor equipment;

Ultimate dimensional stability and wear resistance maintain ultra-low precision drift under high-frequency, high-precision reciprocating motion conditions of wafer manipulators;

Full life-cycle high-reliability design significantly reduces the downtime and maintenance frequency of wafer manufacturing equipment, ensuring the yield and capacity of nanometer-level processes;

Perfect non-magnetic and high-cleanliness characteristics meet the stringent requirements of high-end semiconductor equipment for electromagnetic compatibility, dust-free, and pollution-free environments.

Typical Application Scenarios

Lithography machines and wafer alignment equipment; Ion implanters and semiconductor etching equipment; CVD/PVD thin-film deposition equipment; Wafer transfer manipulators and vacuum chambers; High-vacuum molecular pumps and pump sets; Semiconductor inspection equipment and probe stations.

Precision Quality Assurance

NMT High-Vacuum Semiconductor Bearings use special low-outgassing alloys and radiation-resistant materials as core raw materials, subject to strict material and vacuum outgassing rate inspections upon incoming. After precision turning, rings undergo anti-radiation lattice strengthening treatment and ultra-precision grinding and polishing, with strict control over raceway surface roughness and micro-geometric accuracy. Precision rolling elements are fully automatically sorted for size, roundness, and weight to ensure consistent load distribution and friction torque within the same bearing set. All components undergo cleaning and assembly in a Class 100 cleanroom. Finished products undergo 100% vacuum outgassing rate testing, rotational accuracy, and friction torque testing. Unqualified products are completely rejected, ensuring the ultimate performance of batch products under extreme conditions such as semiconductor equipment, providing reliable support solutions for high-end precision equipment.

Product Series

High-vacuum deep groove ball bearings, high-vacuum crossed roller bearings, high-vacuum ceramic hybrid bearings; Selection is based on installation space, vacuum levels, outgassing rate requirements, and radiation-resistance levels.

Brand Strength

NMT is deeply engaged in the R&D and manufacturing of high-vacuum semiconductor bearings. Targeting industry pain points in semiconductor equipment scenarios—where strong radiation causes material embrittlement, grease volatilization under high vacuum contaminates wafers, and micro-dimensional changes affect alignment precision—NMT continuously optimizes special low-outgassing materials, anti-radiation lattice strengthening technology, and high-cleanliness assembly processes. This effectively solves fatal defects of traditional bearings in semiconductor equipment such as volatilization outgassing, radiation embrittlement, and precision drift. It significantly enhances the operational stability and process yield of wafer manufacturing equipment, helping high-end semiconductor manufacturing enterprises break through precision transmission bottlenecks and seize the global high-end chip equipment intelligent manufacturing market.