In advanced semiconductor manufacturing, cleanroom performance depends on stable control of several tightly coupled environmental parameters. These parameters do not function independently; instead, they collectively define process stability, tool accuracy, and yield consistency.
In nanometer era, cleanroom is no longer an auxiliary facility; it is a primary component of the process toolset. By managing the tight coupling between particulate control, thermodynamic stability, and structural vibration, Line-Link® ensures that the environment remains a constant, allowing the process to remain the only variable.
① Standard Compliance: Engineered for ISO 14644-1 Class 1 to Class 3 environments.
② Contamination Threshold: Particle density is strictly governed at ≤10 counts per 0.028 m3 for diameters ≥0.1um
③ Mechanical Strategy: Utilization of multi-stage filtration (Pre + Medium + HEPA/ULPA) coupled with high-frequency air change rates to ensure the rapid evacuation of process-generated contaminants.
Airflow & Pressure Differential
① Flow Pattern: Vertical Unidirectional Laminar Airflow via ceiling-integrated FFU arrays. The system operates on a "piston effect" principle, ensuring a uniform velocity profile that sweeps particles directly into raised-floor return air grilles.
② Pressure Management: Implementation of a strict Positive Pressure Gradient. Air pressure decreases systematically from the "Core Process Zone" outward to auxiliary corridors, ensuring zero-ingress of external pollutants at interface points.
Thermodynamic & Stability
①Thermal Precision: Constant temperature regulation at 22℃±0.1℃. This sub-degree precision is critical to prevent thermal expansion/contraction of silicon wafers and photomasks, which otherwise results in overlay misalignment in high-NA lithography.
② Humidity Control: Regulated at 45%±3RH. This range is calculated to suppress metal oxidation and photoresist chemical degradation while simultaneously acting as a primary ESD mitigation layer.
① Structural Sensitivity & Vibration Isolation: Advanced lithography tracks are intolerant to micro-seismic interference.
② Engineering Measures: Structural decoupling of the fab floor from the main building frame, utilizing independent massive concrete foundations and active/passive air-spring vibration isolation platforms to ensure nanometer-scale equipment stability.
③ ESD Strategy: Deployment of dissipative materials (ESD-rated wall panels and flooring) combined with point-of-use ionizers to neutralize static charges that trigger Electrostatic Attraction (ESA) of particles.
Corporate Profile
Established in 2003, Line-Link® has built its operations around a manufacturing-led approach to cleanroom engineering, ensuring that system performance is defined and controlled from the production level onward. With 12 global manufacturing bases, it produces critical cleanroom components in-house, including ESD-resistant modular panels, high-efficiency HEPA/ULPA filtration systems, and air purification equipment such as FFUs and laminar flow units. This ensures design intent is directly reflected in the final installed system, while maintaining consistency in quality, delivery timelines, and cost control.
On this foundation, Line-Link operates as a fully integrated EPC (Engineering, Procurement, and Construction) provider, managing the complete project chain from design through commissioning. By consolidating responsibility across disciplines, it reduces interface risks between structural systems, airflow design, filtration performance, and ESD control.
Line-Link® is committed to delivering cleanroom solutions built on technical expertise, proven project experience, and full transparency throughout client whole process.
