Chip manufacturing cannot do without cleanrooms. While we’re often familiar with standard‑grade cleanrooms, do you know what the construction process looks like for a Class 100 cleanroom?

Before commencing the renovation of a Class 100 chip‑cleanroom, it is essential to define the strategy and pricing. When signing the contract, a site inspection should typically be conducted first, as many design plans must be tailored to the on‑site conditions and the specific product‑manufacturing requirements of the facility. Different industries have distinct regulations, varying levels of cleanliness, and differing cost structures. It is crucial to assess the cleanroom’s interior finish standards, floor area, ceiling height, and structural beams, and to prepare detailed engineering drawings. This facilitates smooth subsequent design work and saves time. Once the proposed plan and pricing are confirmed, the contract can be signed, and construction may proceed. The following sections will provide a step‑by‑step explanation.

To ensure that the cyclone-based air purification system mentioned in Article 1 remains unaffected, the overall structural design must carefully address areas where dust is unlikely to accumulate.

A Class 100 cleanroom for electronic manufacturing typically operates at full capacity, so it is essential to engage a purification‑process engineering specialist to calculate the required exhaust airflow. However, do not blindly base the exhaust design on the desired air‑change rate; instead, account for the building’s thermal gains from process equipment and the ambient humidity. Otherwise, while the initial exhaust volume may meet temperature and humidity specifications, the system will lose its effectiveness after a period of operation.

Airflow rate and air exchange rate in a Class 100 cleanroom

Supply air volume calculation: For a Class 100 vertical laminar flow cleanroom, the exhaust rate is 0.25 m/s based on the cleanroom’s cross-sectional area. For a Class 100 horizontal laminar flow cleanbench, the exhaust rate is 0.35 m/s based on the cleanroom’s cross-section. For a non-unidirectional (turbulent) cleanroom, the supply air volume equals the cleanroom’s capacity.

Ventilation operating frequency:

The design standards for Class 100 cleanrooms do not specify a required air change rate, but they do provide detailed requirements for surface wind speed; FFU fan-filter units may be used as supply air outlets.

1. Assembly of color‑steel panel partitions for indoor renovation in a Class 100 cleanroom: This process is comparable to standard structural construction. Once the materials arrive on site, all partition walls must be installed; the duration will depend on the size of the facility. Cleanroom renovations are classified as industrial‑building work and typically proceed more quickly than typical interior‑finishing projects, which tend to have longer construction timelines.

II. Ceiling Installation in a Class 100 Cleanroom: Once the partition walls have been installed, the suspended ceiling must be assembled—this step should not be overlooked. Equipment such as FFU filtration units, cleanroom lighting fixtures, and central air-conditioning systems will be mounted on the ceiling. The spacing between suspension screws and ceiling panels must comply with specified requirements. Proper planning and layout are essential to avoid unnecessary costs and disruptions during later stages of construction.

III. Interior Fit-Out of the Class 100 Cleanroom: Equipment and Air-Conditioning Installation. Key equipment in the cleanroom purification field includes FFU filtration units, cleanroom lighting fixtures, air diffusers, air showers, and central air-conditioning systems. The installation process is typically somewhat time‑consuming, requiring a period to prepare and apply coatings. Therefore, upon signing the contract, it is important to confirm the scheduled arrival date of the equipment. At this stage, the cleanroom assembly is complete, and the next step is the flooring work.

IV. Flooring Project for a Class 100 Cleanroom: Which flooring is suitable for which type of floor coating? What precautions should be taken during the installation of floor coatings, including temperature and humidity requirements, and how long after completion can the space be occupied? Homeowners in the community are advised to check these details first.

5. Inspection of the Class 100 cleanroom during renovation: Verify that the wall finishing materials are intact and undamaged; confirm whether the room meets the required cleanliness class; and assess whether equipment in different zones is functioning properly.

That concludes our analysis of this article. By now, you should have a solid understanding of the renovation process for a Class 100 cleanroom.