Cleanroom Stocks List
Symbol | Grade | Name | % Change | |
---|---|---|---|---|
APT | B | Alpha Pro Tech, Ltd. | 1.06 | |
VSTS | F | Vestis Corporation | -1.05 |
Related Industries: Building Materials Rental & Leasing Services
Symbol | Grade | Name | Weight | |
---|---|---|---|---|
ACTV | D | LeaderShares Activist Leaders ETF | 3.78 | |
CSD | D | Guggenheim Spin-Off ETF | 1.74 | |
PSCI | D | PowerShares S&P SmallCap Industrials Portfolio | 0.77 | |
RWJ | D | RevenueShares Small Cap | 0.22 | |
VIOG | D | Vanguard S&P Small-Cap 600 Growth ETF | 0.22 |
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- Cleanroom
A cleanroom or clean room is an engineered space, which maintains a very low concentration of airborne particulates. It is well isolated, well-controlled from contamination, and actively cleansed. Such rooms are commonly needed for scientific research, and in industrial production for all nanoscale processes, such as semiconductor manufacturing. A cleanroom is designed to keep everything from dust, to airborne organisms, or vaporised particles, away from it, and so from whatever material is being handled inside it.
A cleanroom can also prevent the escape of materials. This is often the primary aim in hazardous biology and nuclear work, in pharmaceutics and in virology.
Cleanrooms typically come with a cleanliness level quantified by the number of particles per cubic meter at a predetermined molecule measure. The ambient outdoor air in a typical urban area contains 35,000,000 particles for each cubic meter in the size range 0.5 μm and bigger, equivalent to an ISO 9 certified cleanroom. By comparison an ISO 14644-1 level 1 certified cleanroom permits no particles in that size range, and just 12 particles for each cubic meter of 0.3 μm and smaller. Semiconductor facilities often get by with level 7 or 5, while level 1 facilities are exceedingly rare.
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