Patent ID: 8906197

Claim:
A plasma processing chamber, comprising: an interior volume; a bottom electrode assembly defined by, an inner bottom electrode for supporting a substrate and defining a center region for substrate etching, the inner bottom electrode having a connection to a first RF power; an outer bottom electrode disposed outside of the inner bottom electrode, the outer bottom electrode defining a region for chamber cleaning, wherein the outer bottom electrode includes a conductive ring connected to ground; and a dielectric material disposed between the inner bottom electrode and the outer bottom electrode, the dielectric material separating the inner bottom electrode from the outer bottom electrode; a top electrode assembly having a first grounded top electrode disposed above the inner bottom electrode, the first grounded top electrode having a top, a bottom, and a side, the top electrode assembly including a second top electrode disposed within the interior volume, the second top electrode surrounds the side of the first grounded top electrode and is disposed above the outer bottom electrode of the bottom electrode assembly, the second top electrode defined by, an inductive coil buried in a dielectric material; Faraday shield placed below the dielectric material; and a dielectric ring placed below the Faraday shield, the dielectric ring being configured to face the region for chamber cleaning.