Cleanroom Wash / Cleanroom Packing Service
Service Introduction Video
The cleanroom specification in the video is the "U.S. Federal Standard (FED-STD-209E)" cleanliness class.
Service Details
- Cleanroom Wash and Cleanroom Packing of Product. We will do the cleaning and packing in a cleanroom. It is designed for the parts embedded in the FPD production device, semiconductor manufacturing device, medical equipment and food machinery, as well as the parts used in a cleanroom environment.
Cleanroom Wash
- Cleaning is performed in a washing room with a cleanliness level of ISO Class 7 (Class 10000*1).
- The amount of airborne particulates and microorganisms in the air is checked to control cleanliness. You can select 2 cleaning methods for the product.
USC Ultrasonic cleaning
IPA IPA cleaning
*1: Figures in parentheses are "U.S. Federal Standard (FED-STD-209E)" cleanliness class.
Cleanroom Packing
- Cleanroom-washed products are double-packaged with vacuum on the clean bench in a cleanroom.
- The cleanliness level inside the cleanroom is ISO Class 6 (Class 500*1), and the clean bench for packaging is ISO Class 4 (Class 10*1).
*1: Figures in parentheses are "U.S. Federal Standard (FED-STD-209E)" cleanliness class.
Cleanroom Wash & Packing Processes
- USC Ultrasonic Cleaning (suitable for rust-resistant materials like stainless steel)
- IPA IPA Cleaning (suitable for rust-prone materials like steel)
Checking the effect of cleanroom washing
Measuring the particles
After washing the test samples of USCultrasonic cleaning completed and IPAIPA cleaning completed, as well as untreated test sample, with ultrapure water, we measured the number of particles floating in the ultrapure water.The higher the cleaning power, the fewer the floating particles will be.
Test sample: SUS303 φ19×20
Test method: Automatic liquid particle counter measurement
Number of particles floating in the ultrapure water
| Particle size | USCUltrasonic cleaning | IPAIPA cleaning | Untreated |
|---|---|---|---|
| ≧0.3μm | 220,000 | 7,000,000 | 210,000,000 |
| ≧0.5μm | 51,000 | 1,900,000 | 37,000,000 |
| ≧0.7μm | 15,000 | 640,000 | 9,700,000 |
| ≧1.0μm |
3,100 | 160,000 | 1,400,000 |
| ≧2.0μm | 280 | 29,000 | 240,000 |
- The values in the table are actual test values and are not guaranteed values.
Measuring the residual oil content
Residual oil content after cleanroom washing
| Particle size | USCUltrasonic cleaning | IPAIPA cleaning |
|---|---|---|
| Residual oil content | 0.3mg/ft2 | 1.5mg/ft2 |
- The values in the table are the actual test values. The result varies depending on the product size or shape.
- NBK measures the residual oil content on a periodic bases to make sure that the residual oil content after completing the USCultrasonic cleaning is not more than 1mｇ/ft2.
Applicable Products
- Target products indicates "Cleanroom washed and packed" on their product page. The cleaning method is USC Ultrasonic cleaning.
- Target products indicates "Cleanroom Wash / Cleanroom Packing Service" on their product page.
- The supported size for a single cleanroom wash and cleanroom packing is up to 250 mm (L) x 300 mm (W) x 100 mm (H).
- We can handle products other than those listed in this catalog or other cleaning and packaging method of your choice. Please feel free to contact our customer service.
How to use the service
Select the product part number to do cleanroom wash and
cleanroom packing and a cleaning method.
USC Ultrasonic cleaning
IPA IPA cleaning
Caution
- The supported size for a single cleanroom wash and cleanroom packing is up to 250 mm (L) x 300 mm (W) x 100 mm (H). For larger sizes, orders can be handled in more than one part.
- Ultrasonic cleaning cannot be used on materials that rust easily, such as iron.
- For this service, the qty per pack is at our discretion. If the qty per pack needs to be changed, it is possible with an additional charge. Please contact our customer service.
- Contact us regarding combining this service with additional services.