Patent ID: 6911092
Filing Date: 2005-06-28
Classification: C23C,H01L,Y10T

Abstract:
1. An atomic layer deposition system, comprising: an atomic layer deposition chamber (“deposition chamber”), said deposition chamber comprising a substrate holder and a heater; a draw-gas introduction chamber (“DGIC”); a deposition-chamber flow restriction element (“FRE”) in serial fluidic communication between said deposition chamber and said DGIC; a draw-gas source; a draw-source shut-off valve in serial fluidic communication between said draw-gas source and said DGIC; a draw-source-FRE in serial fluidic communication between said draw-gas source and said DGIC; a draw control chamber; a DGIC-FRE in serial fluidic communication between said DGIC and said draw control chamber; a draw-control outlet in serial fluidic communication with said draw control chamber; a vacuum pump in serial fluidic communication with said draw-control outlet; a draw-control FRE in serial fluidic communication between said draw-control outlet and said vacuum pump; a plurality of chemical-gas sources; a plurality of booster chambers, each booster chamber being in serial fluidic communication with one of said chemical-gas sources; a plurality of chemical-source-FREs, each chemical-source-FRE being in serial fluidic communication between one of said chemical-gas sources and one of said booster chambers; a plurality of chemical-dosage shut-off valves, each chemical-dosage shut-off valve being in serial fluidic communication between one of said booster chambers and said deposition chamber; a plurality of booster-FREs, each booster-FRE being in serial fluidic communication between one of said booster chambers and said deposition chamber; a purge-gas source; a purge-source shut-off valve in serial fluidic communication between said purge-gas source and said deposition chamber; and a purge-source-FRE in serial fluidic communication between said purge-gas source and said deposition chamber.