Patent ID: 6537461
Filing Date: 2003-03-25
Classification: C23C,C23F,C23G,H01L,Y10S

Abstract:
A process for cleaning a substrate, which comprises (1) a step of transferring a substrate to a treatment chamber from a transfer chamber, (2) a step of adjusting the temperature of the substrate, (3) a step of supplying a gas comprising an atomic oxygen-donating gas into the treatment chamber, (4) a step of cleaning the substrate in the treatment chamber, and (5) a step of transferring the cleaned substrate to the transfer chamber from the treatment chamber, where a film or particles comprising at least one member selected from the group consisting of ruthenium, ruthenium oxide, osmium and osmium oxide, deposited at least at edges or on the backside of the substrate in the step (3) is removed in the step (4).