Abstract: Methods for filling a recessed feature on a substrate are disclosure. The methods may include, providing a substrate with a recessed feature including a metal liner layer, partially etching the metal liner, and subsequently filing the recessed feature with a gap-fill material employing a combination of etch and cyclical deposition processes. Semiconductor structures including a gap fill metal film disposed in a recessed featured are also disclosed.

Abstract: Methods for filling a recessed feature on a substrate are disclosure. The methods may include, providing a substrate with a recessed feature including a metal liner layer, partially etching the metal liner, and subsequently filing the recessed feature with a gap-fill material employing a combination of etch and cyclical deposition processes. Semiconductor structures including a gap fill metal film disposed in a recessed featured are also disclosed.

Abstract: Methods and systems for forming a structure are disclosed. Exemplary methods include providing a substrate comprising a gap within a reaction chamber, selectively depositing a first material comprising molybdenum on a first surface within the gap relative to a second surface within the gap to at least partially fill the gap, and after the step of selectively depositing the first material comprising molybdenum, conformally depositing a second material comprising molybdenum over the first surface and the second surface.

Abstract: Methods and systems for cleaning and treating a surface of a substrate. An exemplary method includes providing a substrate comprising a gap comprising a metal oxide and a dielectric material within a reaction chamber, and using a thermal process to selectively remove the metal oxide. Exemplary methods can further include a step of depositing a metal-containing material within the gap to at least partially fill the gap and using a direct plasma and treating a surface of the metal-containing material to remove oxygen from the surface of the metal-containing material. Exemplary systems can perform the methods.