Patent ID: 7845309

Claim:
An apparatus for processing a substrate with a plasma, the apparatus comprising: a first electrode; a second electrode; a separating member directly contacting said first electrode and directly contacting said second electrode and forming a sidewall extending from said first electrode to said second electrode, said separating member composed of a dielectric material capable of electrically isolating said first electrode from said second electrode; a processing region formed by said separating member, said first electrode, and said second electrode; a process gas port for introducing a process gas to said processing region; a vacuum port in said first electrode for evacuating said processing region to a sub-atmospheric pressure suitable for generating the plasma from the process gas in said processing region; an electrically conductive shell surrounding said first electrode, said second electrode, and said separating member; and an atmospheric pressure space between said shell and said first electrode, said second electrode, and said separating member.