Spin chuck with rotating gas showerhead
An apparatus for processing wafer-shaped articles comprises a spin chuck for holding a wafer-shaped article in a predetermined orientation, and a rotating shower head for supplying process gas to a surface of a wafer-shaped article when held by the spin chuck. The rotating shower head comprises an o...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | An apparatus for processing wafer-shaped articles comprises a spin chuck for holding a wafer-shaped article in a predetermined orientation, and a rotating shower head for supplying process gas to a surface of a wafer-shaped article when held by the spin chuck. The rotating shower head comprises an outlet plate having plural openings formed in each of a central and a peripheral region thereof. A process gas feed is provided so as to supply process gas to a gas distribution chamber. The gas distribution chamber is in fluid communication with a plurality of openings formed in the shower head. |
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