Cleanroom technology

Handling and assembly

Parts cleaning

200 m² cleanroom area in class ISO 6 according to DIN EN ISO 14644
The particle concentration in the air is max. 293 particles per m³ with a diameter of ≥ 5 µm.
Particle filtration via HEPA/ULPA filters
Filtration of organic and inorganic substances via activated carbon filtration
Cleanrooms designed to be silicone-free and low-outgassing
Monitoring via TENAX measurements
Staggered overpressure levels of cleanrooms, airlocks and grey areas

Cleanroom assembly stations
- ISO 6 cleanroom with local ISO 5 flowbox workstations
- 35,200 particles/m3 at ≥0.5
- ORK measurements to determine surface particle contamination on cleaned parts
- Nitrogen rinsing cabinets for storing cleaned parts, drying parts after gluing processes, etc.
Laminar flow workstations
- Locally higher purity class (ISO 5)
- Directed, low-turbulence airflow
- Airflow via HEPA filter
N₂ Purge Cabinet / Nitrogen Drying Cabinets
- Protection against molecular contamination
- Oxidation protection
- Extremely low humidity
Vacuum chamber welding machine with nitrogen purging
- Evacuating the air from the bags
- Purge with nitrogen
- Reduction of oxygen and moisture

Pre-cleaning
- 10 ultrasonic cleaning baths with usable dimensions up to 2000x1500x1800 mm and different frequency ranges as well as spray cleaning
Fine cleaning
- 3 spray cleaning systems for wet chemical cleaning with airlock for transfer to the cleanroom
Automated cleaning process line with 8 ultrasonic baths, hot air and vacuum drying chamber
- Control and monitoring of all baths, including temperature, refractometer reading, pH value, conductivity, LPC (liquid particle value) and TOC (total organic carbon).
- System compliant with cleanroom standards, completely under filtered laminar flow of class ISO 6 according to DIN EN ISO 14644
  - Liquid particle count (LPC) and total organic carbon (TOC) below 80 ppb (parts per billion)