Chip fabs ultra-purify water for rinsing wafers. They can reduce water use by doing more dry processes instead of rinsing with water. They can also recycle rins

Chip fabs ultra-purify water for rinsing wafers. They can reduce water use by doing more dry processes instead of rinsing with water. They can also recycle rinse water, which can have fewer contaminants than the municipal water feed. The water has to be almost perfectly pure. New plants will probably be state of the art in minimizing water use.