Compressed Dry Air (CDA) serves as a fundamental power source running through wafer fabrication, photolithography and etching, packaging & testing, and PCB processing across the entire electronics and semiconductor industrial chain. As the core equipment for air supply, air compressors directly impact chip yield and production line stability. The industry mandates oil-free compressors complying with ISO 8573-1 Class 0 standards.

In wafer preparation, oil-free compressors supply ultra-clean airflow to blow off submicron dust after silicon ingot slicing and wafer polishing. Even trace oil mist can form an isolating film on silicon wafers and trigger subsequent circuit failure, so the total oil content of air supply must be kept below 0.01mg/m³. Photolithography, etching and thin-film deposition constitute core manufacturing processes. Air compressors drive precision cylinders and chamber pneumatic valves of lithography machines. Stable air pressure ensures nanometer-level positioning of wafer stages with pressure fluctuation limited within ±0.05 bar to prevent offset of circuit patterns. Meanwhile, compressed air with low dew point (≤ -40℃) protects optical lenses and avoids laser energy attenuation caused by condensed moisture.

In packaging and testing workshops, air compressors power die bonders, wire bonders and automatic sorting equipment. High-purity air blows away impurities on bonding pads to avoid cold solder joints and short circuits. During chip burn-in tests, uniform clean airflow guarantees accurate electrical test data. For PCB and SMT processing, compressed air supports pick-and-place machine adsorption, circuit board cleaning and reflow oven purging; oil-free air prevents oxidation and contamination of electronic components.

Semiconductor production lines operate 24/7. Oil-free screw and centrifugal air compressors deliver low-vibration and variable-frequency stabilized air output. Equipped with multi-stage precision filters and deep drying units, they control three major contaminants: oil, water and particulate matter. Unlike general industrial air compressors, special semiconductor-grade models eliminate lubricant pollution at the source and drastically reduce wafer scrapping risks. As indispensable precision auxiliary equipment for advanced process fabs, they lay a solid air supply foundation for stable chip mass production and quality improvement.