Pure water is used widely for preparing chemicals, topping up of the plating baths and for rinsing PCBs to ensure that no contamination is present on the finished coating which could cause faults with the PCB operation. The water quality required for PCB plating involves producing reverse osmosis (RO) quality water or totally de-ionised (DI) water.

The quality level of the water is controlled with pure water production reverse osmosis systems, de-ionising resin systems or a combination of both.

Stages of Filtration & Water Treatment

Particle Removal

Prevents debris, scale flakes, dirt and particle build up in pipework, tanks, equipment and where present, premature blinding of filtration stages further along the cascade.

Particle Removal - Fileder Filter Systems

Chlorine and Organics Removal

Helps the taste and odour of the liquid and where present, protects RO membranes from chemical attack.

Chlorine and Organics Removal - Fileder Filter Systems

RO Water Production

Very pure water is produced using reverse osmosis membranes to separate the majority of salts and ions from the feed water and sending the salts and ions to waste or re-circulation.

RO Water Production - Fileder Filter Systems

Deionising

The use of a mixed-bed resin of anion and cation, attracts all salts and ions, removing them from the water.

Deionising - Fileder Filter Systems

TDS Monitoring

Devices that measure the conductivity of water between 2 probes provide a good indicator of the ions and salts content.

TDS Monitoring - Fileder Filter Systems

Return to the Microelectronics Market Page

Click Here