For the wirebonding process, we utilize a clean room originally supplied by Elegra Dieter Bosch GmbH (company liquidated in 2017). The system provides a controlled clean environment via vertical laminar airflow.The clean room is equipped with a HEPA/ULPA filter unit from AAF, specifically the AstroCel II Dry Seal filter and a solid granite table. The filter features the following specifics:
| Efficency | ≥99.999% |
| Size | 782x1830x69 mm |
| Rated Airflow | 0.45 m/s |
| Initial Resistance | ≤125 |
| Type | AstroCal 2 ULPA |
| Serial Nr. | 500246 |
| Datasheet | Astrocal 2 Dry Seal; Clean Room |