Filtration and Purification of Solutions Used in PCB Manufacture

Electrolytic and electroless plating solutions as well as photo resists, etc. all require solids or organic impurity removal, not only to attain, but to maintain high quality PCB production. Consequently, the need for greater cleanliness has brought about rapid advancements in the field of filtration and purification of plating solutions. This paper describes current approaches to these problems.