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Cleanroom Design Bases and Allowable Components

  • Alvin Lieberman

Abstract

Early cleanrooms were constructed by modifying building space in existing factory areas. Some of the 1930s factory areas were located in New England and had been used for fabric or furniture manufacturing. The cleanliness of these building interiors was very poor, and structural components were almost impossible to clean adequately, no matter how much effort was applied. These modified cleanroom areas were modeled after medical and surgical rooms and were used mainly for reducing the deleterious effects of visible contamination. The products manufactured in these rooms were primarily mechanical devices, some pharmaceutical products, optical systems, and some electrical devices, such as precision resistors and high-voltage capacitors. A more serious approach to the conventional cleanroom performance requirements resulted from military requirements for gyroscopic guidance and navigation systems used for long-range vehicles and for control and optical elements used in high-altitude bomb-aiming systems. The guidance systems used floated gyroscopes that could be unbalanced by deposited particles in the size range of 50 μm. The Norden bombsight used during World War II contained fine threaded position controls for the optical elements that required extremely smooth operation for good control and operation in the aircraft.

Keywords

Clean Room Wall Panel Factory Area Dioctyl Phthalate Contamination Control 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Van Nostrand Reinhold 1992

Authors and Affiliations

  • Alvin Lieberman

There are no affiliations available

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