Patent ID: 6361707
Filing Date: 2002-03-26
Classification: C23C,H01J

Abstract:
A method of operating a substrate processing system, said method comprising:flowing a reactive gas into a processing chamber as part of a chamber clean operation, wherein said chamber clean operation includes first and second stages, said first stage including a time period prior to ignition of a plasma in said processing chamber and said second stage including a time period after ignition of said plasma and prior to extinguishing said plasma; directing microwave energy into said processing chamber during said first and second time periods; and during said first stage of said chamber cleaning operation, adjusting a moveable portion of said processing chamber to a first position resulting in resonance of said microwaves in said processing chamber and during said second stage of said chamber cleaning operation, adjusting said moveable portion of said processing chamber to a second position resulting in resonance of said microwaves in said processing chamber during said second stage.