Patent ID: 6210539
Filing Date: 2001-04-03
Classification: H01J

Abstract:
An apparatus for depositing deposition material onto a substrate in the presence of a plasma, said apparatus for use in connection with a source of radio frequency current, comprising:a chamber defining a chamber axis;a source of deposition material;a substrate support disposed in said chamber and having a substrate support surface adapted to support a substrate that has an exposed surface, said substrate support surface being axially displaced from said source of deposition material and positioned to receive said deposition material from said source onto said substrate support surface; anda coil disposed in said chamber, axially displaced from said source of deposition material and responsive to radio frequency current conducted through said coil for producing a radio frequency field within said chamber to maintain a plasma adjacent said substrate support surface, said coil surrounding a region which contains said substrate support surface and being positioned so that said plasma has equipotential lines which extend substantially parallel to said substrate support surface across substantially the entire exposed surface of said substrate and so that said substrate support surface is axially positioned between said deposition material source and at least a portion of said coil.