Ultra pure water

 ultra pure water process


Ultrapure water (UPW), high-purity water or highly purified water (HPW) is water that has been purified to uncommonly stringent specifications. 

Ultrapure water is a term commonly used in manufacturing to emphasize the fact that the water is treated to the highest levels of purity for all contaminant types, 

including: organic and inorganic compounds; dissolved and particulate matter; volatile and non-volatile; reactive, and inert; hydrophilic and hydrophobic; and dissolved gases.


application : semiconductor ultrapure water process


The higher the density of semiconductors, the more stringent the water quality required.

For diluting semiconductor manufacturing chemicals or cleaning semiconductor products, ultrapure water with a high purity that cannot be compared with general industrial water or pure water is required.

Ultrapure water required in the semiconductor industry is 100% theoretical pure water that does not contain organic matter, live cells, ions, and particulates dissolved in water.



*Unilam's excimer lamp can be used for uv process(red square)

*Unilam's UV lamp can be used for uv process(red square)


Long arc UV lamp

Excimer lamp



data source : https://en.wikipedia.org/wiki/Ultrapure_water

photo source : https://m.etnews.com/20210714000164

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