latest company case about Guangzhou Cleanroom Construction Co., Ltd. Certifications

A semiconductor cleanroom is a highly controlled environment designed to minimize contamination during the manufacturing of microchips, integrated circuits (ICs), and other electronic components. Because even microscopic particles can cause defects or yield loss, cleanrooms are indispensable for high-precision semiconductor fabrication.

• Ultra-low particle concentration (ISO Class 1–9)

• Precise temperature and humidity control (up to ±0.1 °C)

• Advanced air filtration systems (HEPA and ULPA filters)

• Electrostatic discharge (ESD) protection

These facilities comply with international standards such as ISO 14644-1 for cleanroom classification and SEMI S2 / SEMI S8 for equipment safety and ergonomics.

Semiconductor manufacturing typically requires ISO Class 1–5 environments, depending on process sensitivity:

• SEMI Standards: Define equipment compatibility and operational reliability (e.g., SEMI F47 for voltage sag immunity).

• Federal Standard 209E (Legacy): Former U.S. cleanroom standard, now replaced by ISO 14644.

• Unidirectional (Laminar) Airflow: Vertical or horizontal airflow patterns that continuously sweep particles away from critical process zones.

• High-Efficiency Recirculation Systems: Typically reuse over 90% of air through multi-stage HEPA/ULPA filtration.

Gowning Requirements

• ISO Class 1–3: Full bunny suits with face masks, goggles, and gloves

• ISO Class 5–6: Partial gowning such as hoods and gloves

Material Restrictions

• Use of non-shedding, low-outgassing materials such as stainless steel, anodized aluminum, and PTFE

• Avoidance of particle-generating plastics or fabrics

• Floor Stability: Isolated slab construction with vibration limits as low as 1–2 µm, per IEST-RP-CC012

• Electromagnetic Interference (EMI) Shielding: Protects sensitive lithography and metrology tools from external electrical noise

A single 20 µm particle can destroy a 5 nm transistor structure. Cleanrooms significantly reduce:

• Yield loss (which can exceed 50% in uncontrolled environments)

• Cross-contamination risks, such as unintended metal ion diffusion

• Reduced Downtime: Cleaner environments result in fewer wafer defects and rework cycles

• Regulatory Compliance: Supports standards such as IEEE 1680 for sustainable and responsible electronics manufacturing

Semiconductor cleanrooms are precision-engineered environments that form the backbone of modern chip manufacturing. By strictly adhering to ISO, SEMI, and IEST standards, cleanrooms enable nanometer-scale fabrication with minimal defects and maximum yield.

As semiconductor geometries continue to shrink, cleanroom technologies are evolving rapidly—integrating AI-based particle monitoring, smart environmental controls, and modular cleanroom systems.

For semiconductor manufacturers, investing in certified cleanroom engineering is not optional—it is essential to sustaining innovation, quality, and global competitiveness.