Patent ID: 9592585
Date: 2017-03-14
CPC Classifications: B08B,B24B

Claim:
1. A chemical mechanical polishing (CMP) station comprising: a housing unit enclosing components of the CMP station; surfaces within the housing unit comprising: a cleaning liquid dosing system configured to dose cleaning liquid on the surfaces of the CMP station at set intervals, the cleaning liquid dosing system comprising; a first cleaning fluid delivery pipe positioned along a longitudinal length of a slurry arm, above the slurry arm cover of the slurry arm; a second cleaning fluid delivery pipe positioned along the longitudinal length of the slurry arm, between the slurry arm cover and a slurry delivery pipe of the slurry arm; wherein the first and second cleaning fluid delivery pipes are configured to dose the cleaning liquid via openings in sidewalls of the cleaning fluid delivery pipes.