Patent ID: 8691702
Filing Date: 2014-04-08
Classification: H01J,H01L,Y10S

Abstract:
1. A method for plasma processing a substrate, the method comprising: providing a process chamber having a wall; providing a plasma source adjacent to the wall of the process chamber; providing a work piece support within the process chamber; loading a work piece onto said work piece support, said work piece having a support film, a frame and the substrate; providing a cover ring above said work piece, said cover ring having at least one perforated region; providing an electrostatic chuck within said work piece support, said electrostatic chuck having at least one clamping electrode, said clamping electrode overlapping said perforated region of said cover ring, said perforated region of said cover ring not overlapping an outer portion of the work piece, said outer portion of the work piece being outside of an outer most seal band of said electrostatic chuck; generating a plasma using the plasma source; and processing said work piece using the generated plasma.