Patent ID: 7217398

Claim:
A reactor for film deposition processes utilizing a solvent mixture that contains a ligand dissolved in a solvent maintained at a supercritical or near supercritical state, comprising: a reactor vessel configured to retain a deposition substrate for deposition processing; a flash system that contains a solvent at or near a supercritical state, the solvent containing a precursor that is reactive to form a film on the deposition substrate and a ligand resulting from such reaction, a precursor-forming agent capable of reacting with the ligand to increase the concentration of precursor in the solvent, thereby providing a rejuvenated solvent; and the recycle system being configured to discharge reacted solvent with ligand from the reactor vessel after reaction to form the film, reacting the precursor-forming agent with the ligand to increase the concentration of the precursor in the solvent and so provide a rejuvenated solvent, and introduce the rejuvenated solvent to the reactor vessel.