Dynamic precursor dosing for atomic layer deposition

Methods and apparatuses for controlling precursor flow in a semiconductor processing tool are disclosed. A method may include flowing gas through a gas line, opening an ampoule valve(s), before a dose step, to start a flow of precursor from the ampoule to a process chamber through the gas line, clos...

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Bibliographische Detailangaben
Hauptverfasser: Ou, Fung Suong, Qian, Jun, Kumar, Purushottam, Karim, Ishtak, Kang, Hu, LaVoie, Adrien
Format: Patent
Sprache:eng
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