| Photolithography is the process of transferring geometric shapes on a mask to the surface of a silicon wafer. The steps involved in the photolithographic process are wafer cleaning; barrier layer formation; photoresist application; soft baking; mask alignment; exposure and development; and hard-baking. This is one of the most critical operations in the semiconductor manufacturing process. |
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| Berkshire recommends the following wipers for Photolithography |
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| CapSure™-LP |
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100% continuous filament polyester knit with sealed edges
Patent pending surface treatment captures and retains particulate contamination
Unique knit construction yields high abrasion resistance
Immediate adsorption of liquids for efficient spill clean-up |
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| CapSure™-VP |
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100% continuous filament polyester knit with sealed edges
Patent pending surface treatment captures and retains particulate contamination
Light weight, high absorbency design reduces landfill waste impact when compared to more traditional heavier weight designs
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| MicroSeal SuperSorb® |
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2-ply bonded, 100% knitted polyester with ultrasonic heat seal
Laundered and packaged in an ISO 4 (Class 10) cleanroom
Berkshire's most absorbent wiper
High abrasion resistance, works well with IPA, acetone and other solvents |
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| MicroSeal®-VP |
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100% continuous filament knit polyester with ultrasonic sealed edges
Laundered and packaged in an ISO 4 (Class 10) cleanroom
Smooth surface with excellent loft and hand characteristics
High abrasion resistance, works well with IPA, acetone and other solvents |
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| ValuSeal-HA® |
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100% knitted polyester with ultrasonic heat seal
Laundered and packaged in an ISO 4 (Class 10) cleanroom
Critically low particles and fibers
Works well with IPA, acetone and other solvents |
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| MicroFirst LP® |
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58% polyester/42% lyocell nonwoven
Extremely pure, cleanest nonwoven in product line
Durable with high wet strength
Works well with IPA and other solvents |
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| MicroSeal® 1200 |
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100% knitted polyester, sealed edge
Works well with IPA, acetone and other solvents
Critically low particles and fibers
Lowest extractables and ions |
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| MicroSeal® 3000 - 9 x 9 |
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Tubular sealed edge two ply 100% polyester
Highly absorbent, pliable sealed edge
Laundered and packaged in an ISO 4 (Class 10) cleanroom
Works well with IPA, acetone and other solvents |
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| Ultra-Seal 3000® 9" x 9" |
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Tubular sealed edge two ply 100% polyester
Laundered and packaged in an ISO 4 (Class 10) cleanroom
Critically low particles and fibers due to only 2 edges
Tear resistant for rough surface cleaning |
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| Ultra-Seal 3000® 12 " x 12 " |
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Tubular sealed edge two ply 100% polyester
Laundered and packaged in an ISO 4 (Class 10) cleanroom
Critically low particles and fibers due to only 2 edges
Tear resistant for rough surface cleaning |
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| ValuSeal®-LP |
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100% knitted polyester
Laundered and packaged in an ISO 4 (Class 10) cleanroom
Lowest Non Volatile Residues available
Steam autoclavable for aseptic environments |
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| ValuSeal® 1500 |
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100% knitted polyester with sealed edge
Laundered and packaged in an ISO 4 (Class 10) cleanroom
Extremely low particles, fibers, ions and extractables
Holds and distributes greater liquid volume |
