A: A static dissipative cleanroom is a cleanroom with special static dissipative cleanroom flooring, special static dissipative cleanroom walls, and humidity control to reduce static in the cleanroom.
A: As the air passes thru the HEPA filtration at high velocity and multiple times per hour the friction can create excessive static in air and static buildup on equipment and walls.
A: Grounding wrist guards and grounding cleanroom booties are typical inside a static dissipative cleanroom.
A: Static dissipative heat welded vinyl, static dissipative vinyl tiles, and static dissipative epoxy coating are popular choices for static dissipative cleanrooms. Copper conducting strips are laid under the vinyl flooring and connected to cleanroom ground.
A: Special static dissipative paint is used on aluminum skins of the modular cleanroom walls in static dissipative cleanrooms.
A: Free standing or ceiling mounted de-ionizers are often used in static dissipative cleanrooms to control static buildup.
A: Keeping humidity over 50% is a good method to reduce static buildup in a cleanroom.
A: As pharmaceutical and medical device cleanrooms go to ISO-5 and better, operators worry more about super small particles (0.3 micron). The super small particles get stuck on objects due to static and are very difficult to remove.
A: Electrostatic Discharge (ESD) can fatally damage fine lithography semiconductor circuits. Static buildup is the cause of the ESD.
A: Even larger electronics circuits like PCBs are susceptible to ESD damage. Controlling static in electronics manufacturing and testing cleanrooms can reduce the chance of ESD damage.