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PolyCHECK® Wipers

Foamtec International Contamination Control Division

Foreign Particle Sample Collection

Failure Analysis and Cleaning Validation Wipe

PolyCHECK® is an ideal cleaning validation and failure analysis tool for particle contamination as it enables quality engineers to rapidly sample equipment surfaces to recover foreign particles in ISO 1-8 Cleanrooms. PolyCHECK® attracts and holds particle contamination on the fabric surface for easy transfer to SEM stubs and analysis via Scanning electron microscopy, x-ray dispersion(SEM/EDX) and Fourier transfer infrared spectroscopy (FTIR).

PolyCHECK® is constructed with cleanroom-grade polyester fabric designed to attract and hold contamination after dry wiping surfaces. The ability to attract and retain particulate contamination from large equipment surfaces allows quality engineers and failure analysis labs to identify and eliminate contamination sources. PolyCHECK® is designed to enable SEM/EDX technicians to quickly transfer collected contamination to SEM stubs for further analysis. PolyCHECK®, combined with Foamtec’s material science lab, allows customers to perform risk assessments for surface contamination on cleanroom work surfaces and process equipment.

The PolyCHECK® Swab is available for sample recovery on small/hard to access surfaces.

The PolyCHECK® Wipe is available gamma-irradiated for investigating non-viable particle levels on equipment in ISO 5 aseptic cleanrooms.

PolyCHECK® is designed with black fabric to ease visual inspections for organic-based particle contamination, which fluoresces when exposed to UV light sources.

Advantages

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Enables collection of contamination from large surfaces in cleanrooms such as workstations, process equipment, vacuum chambers, robotics, tooling and devices, reducing costly and time-consuming sample collection associated with SEM stubs.
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Allows for much faster failure mode & effect analysis(FMEA) of root cause particle sources to close CAPA’s, scratch defect events and particle excursion investigations.
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Allows for proactive, continuous improvement programs to reduce contamination at the source.
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Ideal cleaning validation tool.

Applications

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Combined with UV light, PolyCHECK enables post-cleaning validation for high vacuum chambers, front end modules, wafer transfer robots, tablet presses, laminar flow hoods and sterile filling machines.
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Ideal for sampling surfaces, tooling and components to identify contamination sources in wafer processing equipment.

How the PolyCHECK® Process Works

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1. Identify Critical Process Equipment

Equipment has been cleaned and is ready to resume production.
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2. Wipe the Surface with PolyCHECK®

PolyCHECK® allows both small and large surfaces to be sampled quickly and efficiently.
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3. Visually Inspect the PolyCHECK® Wipe

PolyCHECK’s black fabric allows for operators to pick up fibers and particles that can be hard to see under bright cleanroom lights.
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4. Use SEM Stub to Transfer Contaminants

The PolyCHECK® has been designed to allow easy transfer of contaminants to SEM Stubs and microscope slides so further analysis can be carried out.
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5. Run SEM/EDX Testing

A SEM/EDX analysis allows for identification of elements and the characterization of particulates and defects.
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6. Run FTIR Testing

A FTIR spectrometer collects high-resolution spectral data over a wide spectral range.
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7. SEM/EDX Analysis

The SEM/EDX machine will allow us to take a look at the chemical composition of the contaminant.
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8. FTIR Confirms Contamination Source

Comparing and matching two FTIR results allows for a contamination source to be identified. In this scenario, the unknown contaminant’s FTIR was matched with a cleanroom polyester wipe’s FTIR, confirming the polyester wipe as the contamination source.
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Product
Description
Quantity
Details

Black Polyester, Sealed Edge
PolyCHECK® Wipe, black polyester inspection wipe with sealed edge


Size: 9" x 9"
Quantity/Pack:
24
Packs/Case:
50

Black Polyester, Sealed Edge
PolyCHECK® Wipe, black polyester inspection wipe with sealed edge


Size: 9" x 9"
Quantity/Pack:
200
Packs/Case:
5

Black Polyester, Sealed Edge

Sterile PolyCHECK® Wipe, black polyester inspection wipe with sealed edge


Size: 9" x 9"
Quantity/Pack:
10
Packs/Case:
10

About Foamtec WCC

Foamtec's mission is to enable contamination control professionals to improve particle control in clean rooms by solving surface contamination challenges. The Wilshire Contamination Control Division of Foamtec International supplies clean room mops, foam swabs, microfiber swabs, foam wipers, microfiber wipers, UltraSOLV® ScrubPADS to address clean room cleaning and the critical cleaning of process equipment.

 

Contact Us

Address

6575 IH-35 North
Waco, TX 76705