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Abstract

Apparatus for creating subatmospheric high plasma densities in the vicinity of a substrate in a work space for use in magnetron sputter deposition aided by ion bombardment of the substrate. Unbalanced flux lines emanating from cylindrical or frusto-conical targets cannot be captured across the work space, because the energizing magnets are cylindrical, and instead converge toward the axis of the apparatus to provide a high flux density, and therefore a high plasma density, in the vicinity of a substrate disposed in this region. The plasma profile and the coating material profile within the work space are both cylindrically symmetrical, resulting in a consistent and predictable coating on substrates.

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First Claim