Photolithography Cleanroom Cascade Control: ±0.1°C Temperature Precision
High-tech precision manufacturing facilities, particularly semiconductor photolithography processes and advanced display production lines, depend on cleanroom cascade control to achieve HVAC precision far beyond that of general building HVAC. Environments housing exposure equipment (Scanner/Stepper) must constrain room temperature within ±0.1 °C to prevent overlay defects caused by wafer thermal expansion. In these environments demanding extreme … Read more