Patent ID: 7740704

Claim:
An atomic layer deposition (ALD) system for depositing a film on a substrate comprising: a processing chamber; a substrate holder coupled to said process chamber and configured to support said substrate; a pumping system coupled to said process chamber and configured to evacuate said process chamber; a plasma source coupled to said process chamber and configured to generate plasma in said process chamber; and a gas injection system including first and second nozzles, protruding within said process chamber, said first and second nozzles each introduce a first process gas and a second process gas to said processing chamber, said first and second process gases are delivered unmixed; said first nozzle introduces said unmixed first and second process gases at a first location, and said second nozzle introduces said unmixed first and second process gases at a second location different than the first location, said first and second nozzles each including, a first gas injection valve, a first gas line, a first gas injection orifice configured to introduce said first process gas unmixed into the process chamber, a second gas injection valve, a second gas line, and second gas injection orifice configured to introduce said second process gas unmixed into the process chamber, the first and second gas injection valves of the first nozzle are different than the first and second gas injection valves of the second nozzle; a controller coupled to the ALD system configured to control independently said first and second nozzles such that at least one of said first process gas and said second process gas is alternatingly and sequentially introduced between said first location and said second location, and said first process gas and said second process gas is alternatingly and sequentially introduced at each of said nozzles.