1. What is a Semiconductor Fluid Delivery System?

A semiconductor fluid delivery system is a critical infrastructure used to transport high-purity gases, chemicals, and ultrapure water (UPW) in semiconductor manufacturing processes.

This system, also known as a UHP (Ultra High Purity) piping system, typically includes:

High purity tubing (PFA tubing, PTFE tubing, EP stainless steel tubing)

High purity fittings (face seal fittings, compression fittings)

Valves and regulators

Filters and purification components

Mass Flow Controllers (MFCs)

The main objective is to ensure contamination-free, leak-tight, and stable fluid transfer.

2. Key Requirements of Semiconductor Fluid Systems

Ultra High Purity (UHP Standards)

Metal ion contamination: ppb to ppt levels

Surface roughness:

316L EP stainless steel: Ra ≤ 0.25 μm

Cleanroom assembly: ISO Class 5 (Class 100) or better

UHP piping systems are essential for advanced semiconductor nodes.

High Purity Gas Delivery

Gas purity: 5N to 8N (99.999%–99.999999%)

Requirements:

No particle generation

No outgassing

Dead-leg-free design

Chemical Resistance

Semiconductor processes involve aggressive chemicals such as:

Hydrofluoric acid (HF)

Sulfuric acid (H₂SO₄)

Ammonium hydroxide (NH₄OH)

Common materials:

PFA tubing → high purity chemical delivery

PTFE tubing → extreme corrosion resistance

PVDF tubing → balanced performance

Leak Tightness

Typical leak rate:

≤ 1×10⁻⁹ mbar·L/s (helium leak test)

Face seal fittings are widely used in semiconductor gas systems.

3. Semiconductor Tubing Materials Comparison

4. Typical Applications in Semiconductor Industry

A semiconductor fluid delivery system is widely used in:

Wet etching systems

Wafer cleaning processes

Photolithography chemical delivery

CVD / ALD gas delivery systems

Ultrapure water (UPW) systems (18.2 MΩ·cm at 25°C)

5. UHP Piping System Design Considerations

To ensure system performance and reliability, the following factors are critical:

Dead leg minimization (avoid contamination)

Electropolished (EP) inner surfaces

High purity fittings (face seal preferred)

Modular and skid system design

6. Leading Brands in Semiconductor Fluid Systems

Key global suppliers in semiconductor fluid delivery systems include:

Swagelok

Entegris

Parker Hannifin

These companies are known for their advanced UHP fluid control technologies.

However, they often come with higher costs and longer lead times.

7. shanghai CJan Fluid Technology Co., Ltd.

Shanghai CJan Fluid Technology Co., Ltd..provides cost-effective and reliable solutions for semiconductor fluid systems.

Key Advantages:

High purity materials: PFA, PTFE, PVDF, 316L EP stainless steel

Strict cleaning and manufacturing control

Wide product range: tubing, fittings, assemblies

Custom UHP piping system design

Applications include:

Semiconductor equipment manufacturers

Wafer fabs

High-tech laboratories

8. FAQ

What is a semiconductor fluid delivery system?

It is a system designed to transport ultra-clean gases and chemicals with minimal contamination.

What is UHP piping?

UHP (Ultra High Purity) piping refers to systems with extremely low contamination levels (ppb–ppt).

Why is PFA tubing used in semiconductor industry?

Because of its low extractables, high purity, and excellent chemical resistance.

What is the difference between PFA and PTFE tubing?

PFA offers better purity and flexibility, while PTFE provides stronger corrosion resistance.

How to choose a semiconductor fluid system supplier?

Key factors include:

Material purity

Manufacturing quality

Cleanroom capability

Customization support

9. Conclusion

A semiconductor fluid delivery system plays a vital role in ensuring process stability and yield in advanced semiconductor manufacturing.

As chip technology advances, the demand for UHP piping systems, high purity tubing, and reliable suppliers continues to grow.

shanghai CJan Fluid Technology Co., Ltd. is committed to delivering clean, safe, and high-performance fluid solutions for the semiconductor industry.