This article compares fan filter units (FFU) and air handling units (AHU), explaining their structure, airflow control, and typical applications in cleanroom environments.

This article explains what a fan filter unit (FFU) is, how it works, and where it is used. It also explores key factors in FFU performance and why integrated manufacturing plays a critical role in system stability and efficiency.

As semiconductor tools and modular cleanroom designs become increasingly compact, traditional Fan Filter Units often present height clearance challenges during equipment integration (EFU applications). This article introduces the DSX Ultra Thin FFU platform, featuring a 70mm total depth profile engineered for low-plenum ceilings, minienvironments, and tool-mounted filtration. The discussion covers how DSX's vertically integrated motor and control system development enables a reduced form factor without sacrificing airflow uniformity or long-term reliability. Application scenarios include wafer handling EFEMs, stocker retrofits, and advanced precision manufacturing modules where every millimeter of vertical space is critical.

In advanced semiconductor manufacturing, microscopic contamination directly correlates with wafer yield loss. This article examines the engineering challenge of airflow uniformity in cleanroom design—specifically the risks of turbulence and particle accumulation. It details how DSX (Wujiang Deshengxin) addresses these issues through vertically integrated FFU manufacturing, featuring proprietary motor technology and customized control algorithms. Unlike standard catalog units, DSX FFU systems are engineered for the extreme stability and 24/7 operational demands of lithography, etching, and metrology environments.

Standard Fan Filter Units (FFU) are optimized for low-turbulence semiconductor environments, but certain industrial processes demand higher air exchange rates. This technical overview defines a High Airflow FFU as a unit engineered to deliver increased velocity (typically 1.8 m/s or greater) without sacrificing HEPA/ULPA filter integrity. Key applications include lithium battery electrode manufacturing, where moisture and dust must be evacuated rapidly, and heavy industrial clean zones requiring aggressive contamination control. The article outlines DSX's in-house motor capabilities and custom airflow adjustment features designed specifically for these high-load, continuous operation scenarios.

This article explains how FFU systems are used in semiconductor cleanrooms to achieve stable and uniform airflow. Learn key design principles, common airflow problems, and how custom FFU solutions from DSX improve cleanroom performance and manufacturing reliability.