Applications for light-based technologies are growing every day and can be found nearly everywhere - from cell phone displays and cameras to lighting and cars that park themselves. Assembly of this critical equipment requires controlled, clean environments. Humans are the main contamination risk in cleanrooms. A gowned person walking across a cleanroom can generate approximately 5,000,000 particles ≥ 0.5 µm/min simply by walking. More advanced optics such as laser beam diffraction, can be affected by temperature and humidity.
At SentrySciences, we are experts in design, implementation and management of cleanrooms to meet all aspects of ISO 14644. From particles in the air to surface cleanliness, call on us to help you design your cleanroom monitoring system to protect your critical assemblies and ensure high quality and yield. Bring your entire system together with ParticleSentryᴱᴹ!
In turbulent-flow, high-bay cleanrooms typically employed for satellite assembly, average airflow velocities are much lower when compared with unidirectional airflow designs. This means large particles (≥ 10 µm) deposit on surfaces and work environments, putting critical products at risk. Aerosol particle counters struggle to collect a representative sample of these larger particles due to settling. And unless they are removed by cleaning the area, it is highly likely those particles will be re-distributed by normal personnel or equipment movements. The solution to this challenge is real-time measurement of the Particle Deposition Rate (PDR). SentrySciences has products that can continuously and automatically monitor large particle deposition at your greatest points of risk, including triggering of alarms in real-time, when PDR increases above a pre-defined limit, or when an ISO 14644-9 Surface Cleanliness Level is exceeded. SentrySciences is at the forefront of instrumentation for monitoring FOD (Foreign Object Debris), large particle deposition and automated witness plate monitoring. Whether it is a continuous monitoring system for FOD in compliance with ISO 14644-9 or a portable inspection tool for cleaning validation, we have an array of innovative solutions for cleanrooms and work environments. Our experts can help to ensure that cleaning methods are adequate and cleanroom practices are preventing the redistribution of large particles to unwanted areas or surfaces in manufacturing processes or pre-launch preparations.