Patent ID: 8088263
Filing Date: 2012-01-03
Classification: C23C,H01J

Abstract:
1. A device for controlling sputter coating deposition to at least one surface of at least one substrate, said device comprising: a magnetic structure having a plurality of electrically isolated and magnetically coupled magnetic pole piece structures arranged in a spoke fashion, said magnetic structure including: at least one target surface having a mounting means for positioning at least one target; a plurality of magnetic concentric rings mounted behind said at least one target surface; a central upright common magnetic core traversing along a longitudinal axis connecting said plurality of magnetic pole piece structures; a plurality of upright pole pieces arranged parallel to each other and attached to each of said plurality of magnetic pole piece structures, so that the plurality of upright pole pieces are arranged at midpoints of said plurality of magnetic concentric rings; a plurality of electromagnetic coils having a first set of forward windings, a second set of reverse windings and a third set of reverse null windings on each of said plurality of magnetic pole piece structures between each of said plurality of upright pole pieces; and a logic controlled power supply that drives said plurality of electromagnetic coils; whereby a phased operation utilizing at least one of a plurality of operational modes is applied to said plurality of electromagnetic coils for maintaining a plasma generation field over said at least one target surface thereby allowing for tuning an angle or trajectory of a plurality of particles ejected from said at least one target surface.