Semiconductor

In the semiconductor industry, water quality directly impacts product yield and reliability. Even trace levels of contaminants can affect wafer fabrication processes.

Di Ao provides advanced ultrapure water (UPW) treatment solutions designed to meet the extremely stringent requirements of semiconductor manufacturing, ensuring consistent performance and long-term operational stability.

1.Industry Challenges

Semiconductor water treatment presents several critical challenges:

• Extremely high purity requirements with near-zero conductivity
• Strict control of particles, organic compounds, and microorganisms
• Continuous and stable system operation for 24/7 production
• Complex wastewater containing chemicals, heavy metals, and fluorides

Our solutions are engineered to address these challenges with precision and reliability.

2.Water Quality Requirements

Ultrapure water quality requirements may vary depending on semiconductor processes and technology nodes. Typical reference values include:

Parameter	Typical Value
Resistivity	Up to 18.2 MΩ·cm
TOC	< 5 ppb
Particles	Sub-micron level control
Microorganisms	Controlled at ultra-low levels

3.Our Solution

Di Ao delivers fully integrated ultrapure water treatment systems tailored for semiconductor applications.

From pretreatment to final polishing, our systems are designed to ensure stable water quality, optimized system efficiency, and compliance with industry standards.

🔷Typical Ultrapure Water (UPW) Production Process

• Pretreatment / Ultrafiltration (UF): Removal of suspended solids, colloids, and microorganisms
• Reverse Osmosis (RO): Removal of dissolved salts, organics, and contaminants
• EDI System: Continuous removal of ions to achieve high resistivity
• Polishing System (Mixed Bed / UV / Final Filtration): Final purification to achieve ultrapure water standards

Di Ao adopts a multi-stage purification process to ensure stable and reliable ultrapure water output.

🔷Key Systems

To support semiconductor water treatment processes, Di Ao provides:EDI and Polishing Units,Reverse Osmosis (RO) Systems,Ultrafiltration (UF) Systems,Ultrapure Water (UPW) Systems.

🔷System Advantages

• Reliable performance for critical applications
• High water quality up to 18.2 MΩ·cm
• Continuous and stable 24/7 operation
• Fully automatic PLC control system
• Energy-efficient and low operating cost
• Modular and scalable design

🔷Integrated Solution Capabilities

Di Ao delivers complete water treatment solutions tailored for semiconductor industry needs:

• Water quality analysis and system design
• Equipment manufacturing and system integration
• Installation, commissioning, and training
• Process optimization and technical support
• Long-term maintenance and after-sales service

We help customers achieve stable production, high yield, and optimized operating costs.

4.Applications in Semiconductor Manufacturing

Di Ao UPW systems are widely used in semiconductor and electronics manufacturing, including:

• Semiconductor material production
• Integrated circuit (IC) manufacturing
• Wafer cleaning and rinsing
• Photolithography and etching processes
• PCB and electronic component production
• LCD, OLED, and display panel manufacturing
• Laboratory and pilot-scale applications

These applications require ultra-clean and stable water to ensure high product quality and process precision.

5.Project Experience

Di Ao has extensive experience in industrial water treatment projects worldwide.

Typical projects include:

• 20 T/H ultrapure water system for semiconductor manufacturing plant
• 10 T/H UPW system for electronics production line
• Multiple customized systems delivered across Asia and global markets