Patent ID: 9062372
Filing Date: 2015-06-23
Classification: C23C,H01J

Abstract:
1. A reactor system for depositing conductive material onto a substrate, comprising: target means including a target, for sputter depositing a layer of conductive material onto said substrate, and for generating a self ionized plasma to ionize a portion of said conductive material sputtered from said target means prior to being deposited onto said substrate; capacitively coupled plasma means including a pedestal having a pedestal electrode, for generating a capacitively coupled plasma, and for biasing a substrate to attract plasma ions to resputter a portion of said conductive material from said substrate; and electromagnetic coil means, including a first electromagnetic coil and a second electromagnetic coil, each coil having turns wound around the periphery of the pedestal and surrounding an area between the target and the pedestal, for generating a magnetic field to surround said pedestal and confine said capacitively coupled plasma in the area between the target and the pedestal to increase the density of said capacitively coupled plasma adjacent said pedestal electrode wherein said electromagnetic coil means further includes selectable source means for driving currents through said first and second electromagnetic coils separately so that the levels and polarities of the currents through the first and second electromagnetic coil may be separately selected.