Patent ID: 9255329
Filing Date: 2016-02-09
CPC Classification: C23C,H01L

Claim Text:
1. A method for depositing an elemental film onto a substrate in a chamber comprising: introducing a reactant gas into the chamber, the reactant gas forming a layer of adsorbed reactant on the substrate; generating a plasma from the ion generating feed gas to form ions, wherein during generation of the plasma, a position of the substrate and a position of the plasma do not change relative to one another; exposing the substrate to the ions; varying a bias applied to the substrate to modulate the ions between a low energy state and a high energy state, wherein ions at the low energy state have insufficient energy to induce surface deposition reactions with the layer of adsorbed reactant and wherein ions at the high energy state have sufficient energy to induce surface deposition reactions with the layer of adsorbed reactant, wherein the bias applied to the substrate is varied to cause the depositing, while the plasma is generated continuously and the substrate is continuously exposed to the ions; and reacting the layer of adsorbed reactant with the ions at the high energy state to form the elemental film.