COMPUTER ADDRESSABLE PLASMA DENSITY MODIFICATION FOR ETCH AND DEPOSITION PROCESSES
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United States of America Patent
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Nov 9, 2015
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Nov 9, 2015
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Disclosed herein are methods of modifying a reaction rate on a semiconductor substrate in a processing chamber which utilize a phased-array of microwave antennas. The methods may include energizing a plasma in a processing chamber, emitting a beam of microwave radiation from a phased-array of microwave antennas, and directing the beam into the plasma so as to cause a change in a reaction rate on the surface of a semiconductor substrate inside the processing chamber. Also disclosed herein are particular embodiments of phased-arrays of microwave antennas, as well as semiconductor processing apparatuses which include a phased-array of microwave antennas configured to emit a beam of microwave radiation into a processing chamber.
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