Utilizing high-performance silicon nitride (Si₃N₄) advanced structural ceramics, this solution features exceptional resistance to strong acid and alkali corrosion, an ultra-low coefficient of thermal expansion, and superior high-temperature mechanical strength. It thoroughly resolves common pain points of traditional metal screws in wafer fabrication equipment—such as susceptibility to corrosion, metal ion contamination, and high-temperature deformation or loosening—delivering the most stable and reliable fastening assurance for advanced manufacturing equipment.
1. Outstanding Chemical Resistance
Impervious to strong acids (e.g., HF, HNO₃, H₂SO₄), strong alkalis, and various chemical cleaning fluids. Ideally suited for semiconductor wet benches, cleaning, and etching equipment, guaranteeing no rust and no seizing over prolonged use.
2. Ultra-Low Thermal Expansion & High-Temperature Stability
Silicon nitride possesses an ultra-low coefficient of thermal expansion and high thermal shock resistance. It maintains dimensional stability under severe temperature fluctuations (cold-to-hot cycling) or high-temperature processing environments, preventing threads from loosening or fracturing due to thermal expansion and contraction.
3. High Cleanliness & Electrical Insulation (Prevents Metal Contamination)
The all-ceramic material completely eliminates the risk of metal ion contamination, satisfying the stringent cleanliness requirements of semiconductor fabs. Meanwhile, its excellent electrical insulation properties prevent equipment arcing and leakage interference.
4. High Mechanical Strength & Precision Threading
Boasting superior flexural strength and toughness among structural ceramics, it is manufactured using high-precision CNC ceramic machining technology. The smooth, precise thread profile offers high wear resistance and anti-galling characteristics, ensuring stability across repeated assembly and disassembly.