Patent ID: 8545636

Claim:
A method for semiconductor part processing, the method comprising: periodically adjusting, using a controller, a conductivity set point for a solvent solution in a solvent bath based on a chemical bathlife interval and a number of semiconductor parts processed in the solvent bath, wherein periodically adjusting the conductivity set point includes increasing the conductivity set point from an initial set point value; substantially continuously measuring bath solvent conductivity to obtain measured bath solvent conductivity, wherein the bath solvent conductivity is measured while recirculating used solvent solution into the solvent bath using a recirculation loop; injecting water into the solvent solution in the solvent bath whenever the measured bath solvent conductivity falls below the adjusted conductivity set point during processing of the semiconductor parts; recording, by the controller and in a memory associated with the controller, a history of one or more of solvent changes, solvent replenishments and water injections into the solvent solution; investigating anomalies and other atypical incidents based on the recorded history; and resolving the anomalies and other atypical incidents in response to the investigation.