Abstract: A process for removing organic electroluminescent residues from a substrate is described herein. The process includes the steps of providing a process gas comprising a fluorine-containing gas, optionally an oxygen-containing gas, and optionally an additive gas; activating the process gas in a remote chamber using at least one energy source to provide reactive species; and contacting the surface of the substrate with the reactive species to volatilize and remove the organic electroluminescent residue from the surface.

Abstract: A method for cleaning silicon-containing deposits in process chamber is described. Fluorine-containing compounds and additional compounds are used for the cleaning. The deposits are removed using a cleaning gas contains fluorine-containing compounds, at least 50% of which have more than one carbon atom and are C4F8 or C2F6 molecules, and additional compounds, at least 50% of which have at least one oxygen atom and at least 50% are N2O molecules. A pressure in the chamber is between 266 Pa and 665 Pa. The method permits economical and environmentally friendly cleaning of the process chamber.