Patent ID: 6511577
Filing Date: 2003-01-28
Classification: C23C,H01J,H01L

Abstract:
A chamber for plasma processing, comprising:a chuck assembly for mounting a workpiece to be processed, the chuck assembly including a driven electrode and a ground portion; a counter electrode; and a plasma source for generating a plasma in the chamber from process gas and having a wall portion, the wall portion of the plasma source being directly electrically connected to the counter electrode and the ground portion of the chuck assembly; wherein the counter electrode includes an inject-exhaust plate; and wherein the inject-exhaust plate is mounted in a position opposed to the chuck assembly; and wherein the chamber further comprises a turbo-molecular pump for pumping effluent; and a pumping plenum for transferring effluent from the chamber to the turbo-molecular pump, wherein the inject-exhaust plate separates the plasma source from the pumping plenum and the turbo-molecular pump.