Conductivity Sensors in Semiconductor Ultrapure Water Applications
Key Takeaways Ultrapure water for semiconductor manufacturing requires conductivity measurement at <0.055 µS/cm (equivalent to resistivity of 18.2 MΩ·cm), demanding precision instrumentation with ±0.5% accuracy. Four-electrode conductivity technology provides 5x better accuracy than two-electrode designs in high-purity water applications. Temperature compensation accuracy must be ±0.1°C to maintain measurement precision, as conductivity changes approximately 2% per…

