Substrate Processing Tool with Tunable Fluid Flow

摘要

Embodiments provided herein describe substrate processing tools. The substrate processing tools include a housing defining a processing chamber. A substrate support is coupled to the housing and configured to support a substrate within the processing chamber. The substrate has a central axis. A first annular member is moveably coupled to the housing and positioned within the processing chamber. The first annular member circumscribes the central axis of the substrate. A second annular member is moveably coupled to the housing and positioned within the processing chamber. The second annular member circumscribes the central axis of the substrate. Movement of the first annular member and the second annular member relative to the housing changes a flow of processing fluid through the processing chamber.