Patent ID: 7455735

Claim:
An electrode assembly for supporting one or more substrates of a first size or one or more substrates of a second size in a plasma processing system, the electrode assembly comprising: an electrode; first and second bars each having a first side, a plurality of first openings on said first side, a second side, and a plurality of second openings on said second side, each adjacent pair of first openings separated by a first spacing along a length of said first side, and each adjacent pair of said second openings separated by a second spacing different from said first spacing along a length of said second side; and a plurality of rails configured to support the substrates in a distanced relationship above said electrode, said rails extending substantially orthogonally from said first bar to said second bar, each of said rails including a plurality of connecting members, and said connecting members configured to be connected detachably with said first openings in said bars so that adjacent pairs of said rails are spaced to support the one or more substrates of the first size, and said connecting members configured to be connected detachably with said second openings in said bars so that the adjacent pairs of said rails are spaced to support the one or more substrates of the second size.