Superimposition of rapid periodic and extensive post multiple substrate uv-ozone clean sequences for high throughput and stable substrate to substrate performance

Abstract

A method for cleaning a substrate processing chamber, including processing a batch of substrates within a processing chamber defining one or more processing regions. Processing the batch of substrates may be executed in a sub-routine having various sub-steps including processing a substrate from the batch within the processing chamber, removing the substrate from the processing chamber, introducing ozone into the processing chamber, and exposing the chamber to ultraviolet light for less than one minute. The substrate batch processing sub-steps may be repeated until the last substrate in the batch is processed. After processing the last substrate in the batch, the method includes removing the last substrate from the processing chamber, introducing ozone into the processing chamber; and exposing the processing chamber to ultraviolet light for three to fifteen minutes.