Selective Vacuum Evaporation by the Control of the Chemistry of Gas Phase in Vacuum Refining of Si
Arman Hoseinpur, Stefan Andersson, Kai Tang, Jafar Safarian
Abstract
and the lowest for Ar for a given pressure, while the temperature effect is insignificant. The rate of P evaporation was accelerated by applying an additional vacuum tube close to the melt surface for taking out the hot gas particles before they lose their temperature and velocity. It was shown that this technique contributes to the rate of process by preventing condensing gas stream back to the melt surface.
Topics & Concepts
ChemistryEvaporationAnalytical Chemistry (journal)Refining (metallurgy)Flux (metallurgy)Inert gasMomentum (technical analysis)Ultra-high vacuumThermodynamicsMaterials scienceNanotechnologyPhysical chemistryChromatographyOrganic chemistryPhysicsFinanceEconomicsAdvanced Surface Polishing TechniquesThin-Film Transistor TechnologiesSilicon and Solar Cell Technologies