Case Study: Cleanroom Film & Bags – FOUP Packaging Using High-Density Resin

Case Study: Cleanroom Film & Bags – FOUP Packaging Using High-Density Resin

A leading semiconductor manufacturer required a custom packaging solution for transporting and storing Front Opening Unified Pods (FOUPs), which house and protect 300mm silicon wafers in cleanroom environments.

Challenge

FOUPs are high-value, precision components that must remain free of scratches, particulates, and moisture during storage and global transport. The client’s existing packaging allowed for minor abrasions and condensation buildup, which are unacceptable in high-purity semiconductor environments.

Key requirements included:

• Scratch prevention on FOUP surfaces
• Moisture barrier protection to prevent corrosion and outgassing
• Cleanroom compatibility (Class 100)
• Durability during shipping and handling

Solution

Cleanroom Film & Bags (CFB) collaborated with the client’s engineering team to develop a custom FOUP bag using high-density polyethylene (HDPE) film, meeting all cleanroom and handling requirements.

Material Selection

• High stiffness and strength for puncture and tear resistance
• Low coefficient of friction to reduce surface abrasion
• Superior moisture barrier properties
• Non-linting and low outgassing for cleanroom compatibility
• Cost-effective compared to alternative materials

Bag Design Features

• Double-bagging system (4 mil inner, 6 mil outer)
• Antistatic additives to dissipate static and reduce particle attraction
• Custom form-fit design to minimize movement and scratching

Cleanroom Manufacturing

• Produced in a Class 100 cleanroom
• Zero particulate contamination
• Consistent quality control across production
• Double-packaged for immediate cleanroom integration

Results

• Zero FOUP surface damage over a 12-month cycle
• Moisture ingress eliminated through testing
• 18% reduction in packaging waste
• Consistent compliance with SEMI E62 standards

Client Feedback

“CFB’s custom HDPE FOUP bags exceeded our expectations in cleanliness, protection, and usability. Their expertise helped improve performance and reduce waste.”

Conclusion

Cleanroom Film & Bags developed a high-performance FOUP packaging solution using HDPE resin, setting a new standard for cleanroom-compatible packaging in the semiconductor industry. This case highlights the importance of material science, engineering, and collaboration in solving advanced packaging challenges.

For more information, contact sales@cleanbags.com.