Wet clean process for recovery of chamber parts

摘要

A cleaning process for recovering an anodized aluminum part is particularly useful when the part has been exposed to a fluorine-containing plasma in etch reactor. The part is bathed (86) in an agitated solution of a fluoride acid, such as ammonium fluoride, which converts aluminum fluoride to a soluble fluoride. The part is rinsed (88) in water. The pores of the cleaned anodization may be resealed (90) by a submerging the part in hot agitated deionized water.