Semiconductor cleanroom bags should never be produced in general industrial environments. A qualified supplier should have a controlled manufacturing system based on ISO 14644 cleanroom standards.

• What to evaluate: Are film extrusion, cutting, sealing, and final packaging all performed in Class 100 or Class 1000 cleanroom environments?
• Why it matters: Only with proper HEPA filtration and controlled airflow can the inner and outer bag surfaces remain protected from airborne contamination during production.

Many general PE bags contain slip agents or other additives to improve production efficiency. In semiconductor applications, this can create a serious risk because additives may migrate over time and cause outgassing.

• Risk to sensitive parts: Chemical residues may transfer onto wafers, electronic contacts, or optical surfaces, leading to conductivity issues, contamination, or process defects.
• Recommended specification: Use 100% virgin PE and select slip-free cleanroom bags whenever chemical cleanliness is critical.

👉 Related reading: What Is Cleanroom PE Film?

“Looks clean” is not enough for semiconductor packaging. Many advanced manufacturers require suppliers to provide LPC (Liquid Particle Count) data as part of incoming quality evaluation.

• Test logic: LPC testing measures the number of micro-particles on the inner bag surface, often using 0.5 μm as a reference size.
• What to ask suppliers: Can they provide batch-based LPC data or equivalent cleanliness documentation to support IQC requirements?

For IC packaging, sensors, and precision electronics, electrostatic discharge can be just as dangerous as particle contamination.

• Typical requirement: A stable surface resistivity range is often expected, commonly around 10⁹ to 10¹¹ ohms.
• Why it matters: Proper ESD performance helps reduce static charge buildup, prevents electrostatic damage, and lowers the attraction of airborne particles to packaging surfaces.

Semiconductor trays, carrier components, and precision metal parts may have hard edges or corners. Packaging must provide reliable physical protection during handling and transport.

• Important indicators: Cleanroom bags should offer strong seal integrity and good puncture resistance.
• Customization flexibility: Thickness should be adjustable, for example from 0.05 mm to 0.15 mm or above, depending on the product shape, weight, and logistics conditions.

Controlled production environments and monitored manufacturing processes help keep particle levels consistently low for contamination-sensitive applications.

Selected non-additive material options help reduce outgassing risk and better protect wafers, optics, and precision electronic surfaces.

Professional test data and supporting documents can help customers align with internal quality systems and supplier evaluation standards.

We offer customized sizes, thicknesses, anti-static options, and additional functional requirements based on process and packaging needs.