Patent ID: 6242359
Filing Date: 2001-06-05
Classification: C23C,H01L

Abstract:
A method of cleaning a chemical vapor deposition processing chamber having deposits on an inner surface thereof, comprising forming a plasma from one or more gases comprising a fluorine-containing but otherwise halogen-free non-global-warming compound, and contacting active species generated in the plasma with the inner surface of the chamber, wherein the non-global warming compound is trifluoromethanol (CF.sub.3 OH), difluoromethanol (CHF.sub.2 OH), 1,1,1,3,3,3-hexafluoroisopropanol ((CF.sub.3).sub.2 CHOH), hexafluoro-2-trifluoromethyl-2-propanol ((CF.sub.3).sub.3 COH), 1,1,2,2-tetrafluoro ethanediol (CF.sub.2 OHCF.sub.2 OH) or combinations thereof.