The Role of Ozone in Semiconductor Manufacturing

Semiconductor chip manufacturing requires ultra-clean surfaces at every stage of production. Even trace organic contaminants can cause defects that render chips unusable. An ozone generator for semiconductor manufacturing provides high-purity ozone water that effectively removes organic contaminants without damaging delicate wafer surfaces.

Ozone vs Traditional Chemicals in Chip Cleaning

Traditional semiconductor cleaning uses large volumes of chemicals including HF (hydrofluoric acid), SC1, and SC2 solutions. These chemicals are expensive, hazardous, and create significant EHS (Environment, Health, and Safety) burdens. Ozone water provides a green alternative:

• Removes organic contaminants as effectively as traditional chemicals

• No hazardous chemical handling or storage required

• Decomposes to pure water and oxygen — zero waste

• Can be generated on-demand at point of use

• Compatible with standard semiconductor process equipment

• Reduces overall chemical consumption by 30-50%

Key Applications for Ozone in Semiconductor Manufacturing

Pre-diffusion Cleaning: Ozone water removes organic contamination from wafer surfaces before high-temperature diffusion processes.

Photoresist Stripping: Ozone-based photoresist stripping reduces chemical consumption in the lithography process.

Surface Preparation: Ozone generators for semiconductor equipment prepare wafer surfaces for deposition and etching processes.

CMP Slurry Recovery: Ozone treatment regenerates CMP (Chemical Mechanical Planarization) slurries, reducing waste and cost.

Technical Specifications Required

Semiconductor-grade ozone water requires:

Ultra-high purity ozone (99.999%+ purity)

Ozone water concentration: 20-80 mg/L depending on application

DI (deionized) water as feed source

Precise temperature and flow control

Materials compatibility: PTFE, PVDF, or titanium components only

Conclusion

Adopting ozone generators for semiconductor manufacturing is a forward-looking investment that reduces costs, improves sustainability, and enhances process cleanliness. Contact TongLin Technology for semiconductor-grade ozone solutions.