US Patent:
20210398780, Dec 23, 2021
Inventors:
- Fremont CA, US
Joseph R. ABEL - West Linn OR, US
Douglas Walter AGNEW - Portland OR, US
Ian John CURTIN - Portland OR, US
International Classification:
H01J 37/32
H01L 21/02
C23C 16/455
Abstract:
An apparatus is provided comprising a process chamber, a precursor gas source, a reactant gas source, an inhibitor gas source, a passivation gas source, a gas, a switching manifold, and a controller. The switching manifold in a first position provides a fluid connection between the inhibitor gas source and the gas inlet, wherein the switching manifold in a second position provides a fluid connection between the precursor gas source and the gas inlet, wherein the switching manifold in a third position provides a fluid connection between the reactant gas source and the gas inlet, wherein the switching manifold in a fourth position provides a fluid connection between the passivation gas source and the gas inlet; and wherein the switching manifold prevents the gas inlet from being in fluid connection with at least two of the gas sources at a same time