Patent ID: 9293926
Filing Date: 2016-03-22
CPC Classification: B44C,H01J,H02J

Claim Text:
1. A multi-layer segmented electrode defining an upper electrode of a plasma processing chamber, the upper electrode disposed above a substrate support that defines a lower electrode of the plasma processing chamber, the multi-layer segmented electrode, comprising: a first layer comprising a first plurality of electrode segments wherein electrode segments of said first plurality of electrode segments are spatially separated from one another along a first direction; a second layer comprising a second plurality of electrode segments, wherein said second layer is spatially separated from said first layer along a second direction perpendicular to said first direction, and wherein respective ones of said second plurality of electrode segments are interleaved from respective ones of said first plurality of electrode segments in the first direction, wherein said first direction is a direction parallel to a layer plane of said first layer, and wherein at least two segmented electrodes of said first plurality of electrode segments are individually controllable.