Patent ID: 8668816

Claim:
A tool for depositing metal into a hole having an aspect ratio of at least 4:1 and formed in a dielectric layer of a substrate, comprising: a transfer chamber; an IMP sputter chamber coupled to said transfer chamber and adapted to form an inductively coupled plasma in said IMP chamber and adapted to sputter deposit a deposition material comprising a metal in said hole wherein said IMP chamber has a pedestal adapted to support and bias said substrate; an SIP chamber coupled to said transfer chamber and adapted to form a self-ionized plasma in said SIP chamber and adapted to sputter deposit a deposition material comprising a metal in said hole, wherein said SIP chamber has sidewalls arranged around a central axis; a pedestal for supporting said substrate in said SIP chamber; a sputtering target positioned in opposition to said pedestal along said central axis, a processing space being defined in a region between said pedestal, said target, and said sidewalls; a magnetron positioned on a side of said target opposite said processing space; and auxiliary magnets disposed at least partially around said processing space having a first magnetic polarity along said central axis and positioned to direct ions toward a substrate supported by said pedestal in opposition to said target along said central axis; and wherein said target is spaced from said pedestal by a throw distance that is greater than 50% of a diameter of the substrate; and a controller adapted to control said pedestal of said IMP chamber to bias said substrate to attract ions of said inductively coupled plasma to resputter deposition material to remove deposition material deposited on a bottom of said hole.