Welcome to the Aerotech clean-room facilities...

Clean-room Assembly, Welding, Bonding, cleaning, Finishing operations and Packaging Services

For any particle sensitive assembly process, the manufacturing may need to be carried out in a controlled, clean room environment to prevent any contamination that may cause the device to fail. Clean rooms are classified according to an international standard. The class of clean room required will depend on the sensitivity of the device to particles.

Aerotech provides clean-room assembly, welding, bonding, cleaning, finishing operations and packaging services. This capability completes the production chain for our customers products, and allows Aerotech to be a single source.

We are capable of handling current production programs as well as managing the entire process from prototype through production.

Cleanliness Classes

The contamination control industry currently uses an international ISO specification to provide a qualified and standardized method for measuring how clean the air is in a clean-room. Six classes have been established to designate clean-room cleanliness.

The class number refers to the maximum number of particles bigger than 0.1 of a micron that would be allowed in one cubic meter of clean-room air.

The US system is slightly different in that the standard refers to the maximum number of particles bigger than half a micron in a cubic foot of air. For example, a US class 100 clean room would not contain more than 100 particles bigger than half a micron in a cubic foot of air.

The ISO Classes are:

ISO 1: Where particle count is not to exceed a total of 10 particles, 0.1 of a micron in size in a cubic meter of air.

ISO 2: Where particle count is not to exceed a total of 100 particles, 0.1 of a micron in size in a cubic meter of air.

ISO 3 (US Class 1): Where particle count is not to exceed a total of 1,000 particles, 0.1 of a micron in size in a cubic meter of air.

ISO 4 (US Class 10): Where particle count is not to exceed a total of 10,000 particles, 0.1 of a micron in size in a cubic meter of air.

ISO 5 (US Class 100): Where particle count is not to exceed a total of 100,000 particles, 0.1 of a micron in size in a cubic meter of air.

ISO 6 (US Class 1,000): Where particle count is not to exceed a total of 1,000,000 particles, 0.1 of a micron in size in a cubic meter of air.

ISO 7 (US Class 10,000): Where particle count is not to exceed a total of 352,000 particles, 0.5 of a micron in size in a cubic meter of air.

ISO 8 (US Class 100,000): Where particle count is not to exceed a total of 3,520,000 particles, 0.5 of a micron in size in a cubic meter of air.

ISO 9: Where particle count is not to exceed a total of 35,200,000 particles, 0.5 of a micron in size in a cubic meter of air.