Patent ID: 9540731
Date: 2017-01-10
CPC Classifications: C23C,H01J,Y10T

Claim:
1. A reconfigurable showerhead, comprising: a body having one or more annular plenums disposed therein and a plurality of passageways disposed outside of the one or more annular plenums and coupled to each plenum of the one or more annular plenums to allow gas to flow into the one or more annular plenums from each passageway, wherein each of the one or more annular plenums is coupled to a substrate-facing side of the body by a plurality of conduits disposed through the body; and one or more annular inserts configured to be removably disposed within the one or more annular plenums, wherein at least one of the one or more annular inserts is configured to change the number of conduits coupled to a given passageway, wherein the one or more annular inserts comprise one or more flow paths formed therein to allow a flow of gas therethrough, wherein each of the one or more flow paths spread recursively from an inlet to a plurality of outlets within the one or more annular plenums via a plurality of passages, and wherein the one or more flow paths extend from an upper surface of each of the one or more annular inserts to a substrate-facing surface of the one or more annular inserts.