Patent ID: 6875287

Claim:
A method for improvement of water reclamation rate in a semiconductor fabrication wet bench, the method comprising: choosing a rinse recipe specifying a type of rinse for a wet bench used to remove chemical residue on one or more wafer surfaces; activating the wet bench and detecting waste water quality of waste water produced by the rinse recipe from the wet bench to generate water quality data for a plurality of reclamation switch time levels, the waste water being directed to a water reclamation system during a reclamation time period after each of the plurality of reclamation switch time levels; analyzing the water quality data of the waste water for the plurality of reclamation switch time levels; and determining from analyzing the water quality data the best reclamation switch time for the chosen rinse recipe for the wet bench, wherein the waste water is to be discarded before reaching the reclamation switch time and to be reclaimed after reaching the reclamation switch time.