Abstract:
Native oxides and residue are removed from surfaces of a substrate by performing a hydrogen remote plasma process on the substrate. In one embodiment, the method for removing native oxides from a substrate includes transferring a substrate containing native oxide disposed on a material layer into a processing chamber, wherein the material layer includes a Ge containing layer or a III-V compound containing layer, supplying a gas mixture including a hydrogen containing gas from a remote plasma source into the processing chamber, and activating the native oxide by the hydrogen containing gas to remove the oxide layer from the substrate.