Patent ID: 8647442
Filing Date: 2014-02-11
Classification: B08B,C11D,C23C,H01J

Abstract:
1. A method of cleaning an interior of a processing chamber in a substrate processing apparatus, comprising: a transferring-in step of transferring into the processing chamber a cleaning substrate comprising a moisture absorbing material that absorbs moisture attached to an inner wall surface of the processing chamber; a temperature adjusting step of heating the processing chamber at a higher temperature than that of the cleaning substrate so that the moisture attached to the inner wall surface evaporates and the cleaning substrate absorbs the evaporated moisture; and a transferring-out step of transferring the cleaning substrate out from the processing chamber, wherein the cleaning substrate is configured separately from the processing chamber and is capable of being freely transferred-in into and transferred-out from the processing chamber, and wherein, in said transferring-in step, the cleaning substrate is mounted on a wafer mounting stage within the processing apparatus.