Systems and Methods for Separately Applying Charged Plasma Constituents and Ultraviolet Light in a Mixed Mode Processing Operation

A processing volume is formed within an interior of a chamber between a top surface of a substrate support and a top dielectric window. An upper portion of the processing volume is a plasma generation volume. A lower portion of the processing volume is a reaction volume. A coil antennae is disposed above the dielectric window and connected to receive RF power. A process gas input is positioned to supply a process gas to the plasma generation volume. A series of magnets is disposed around a radial periphery of the chamber at a location below the top dielectric window. The series of magnets is configured to generate magnetic fields that extend across the processing volume. The series of magnets is positioned relative to the plasma generation volume such that at least a portion of the magnetic fields generated by the series of magnets is located below the plasma generation volume.