Patent ID: 7699935

Claim:
A method for cleaning a process chamber, comprising: providing a process chamber having two separate processing regions; providing a remote plasma source coupled to each of the two separate processing regions through a first gas conduit configured to provide a first volume of a cleaning agent into each of the two separate processing regions above a substrate support assembly disposed in each of the two separate processing regions and a second gas conduit configured to provide a second volume of the cleaning agent into each of the two separate processing regions below the substrate support assembly, wherein the first gas conduit and the second gas conduit are coupled to each other outside the processing chamber; providing the cleaning agent from the remote plasma source; flowing the first volume of the cleaning agent from the remote plasma source through the first gas conduit into interior volumes of each of the two separate processing regions; diverting a portion of the cleaning agent from the first gas conduit into the second gas conduit to provide the second volume of the cleaning agent; and flowing the second volume of the cleaning agent through the second gas conduit into the interior volumes of each of the two separate processing regions by ports located below each of the substrate support assemblies, wherein the second gas conduit extends into the processing chamber and is disposed between the two separate processing regions.