Patent ID: 8118936
Filing Date: 2012-02-21
Classification: H01J

Abstract:
1. A baffle plate for a plasma processing system comprising: a canted ring including a first section and a second section, wherein said first section is radially outside of said second section and the canted ring includes an outer radial edge associated with said first section and an inner radial edge associated with said second section; said first section including substantially planar upper and lower surfaces; said second section including substantially planar upper and lower surfaces, and wherein said upper and lower surfaces of said second section extend at a non-zero angle with respect to said upper and lower surfaces of said first section such that said second section is inclined with respect to said first section and wherein said second section includes a plurality of passageways extending therethrough from the upper surface of the second section to the lower surface of the second section; at least one of a recess and a protrusion provided on said first section; and a protective barrier provided on at least a portion of said second section.