Patent ID: 8702870

Claim:
A method of cleaning a processing chamber, comprising: (a) processing a substrate from a batch of substrates within the processing chamber to remove porogen from a dielectric material deposited on the substrate; (b) removing the substrate from the processing chamber; (c) performing a rapid chamber clean, comprising: pressurizing the processing chamber; heating the processing chamber; introducing ozone into the processing chamber; and exposing the processing chamber to ultraviolet light for about 15 seconds to about 30 seconds; (d) repeating (a) to (c) until the last substrate in the batch is finished with the processing in (a); (e) removing the last substrate from the processing chamber; and (f) after (d) and after the last substrate has been removed from the processing chamber, performing a batch chamber clean, comprising: pressurizing the processing chamber; heating the processing chamber; introducing ozone into the processing chamber; and exposing the processing chamber to ultraviolet light for about 3 minutes to about 15 minutes.