ROTATING TEMPERATURE CONTROLLED SUBSTRATE PEDESTAL FOR FILM UNIFORMITY

• Main Authors: LUBOMIRSKY DMITRY, FLOYD KIRBY H
• Format: Patent
• Language: English
• Published: 29.05.2009
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SEMICONDUCTOR DEVICES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

Substrate processing systems are described. The systems may include a processing chamber, and a substrate support assembly at least partially disposed within the chamber. The substrate support assembly is rotatable by a motor yet still allows electricity, cooling fluids, gases and vacuum to be transferred from a non-rotating source outside the processing chamber to the rotatable substrate support assembly inside the processing chamber. Cooling fluids and electrical connections can be used to raise or lower the temperature of a substrate supported by the substrate support assembly. Electrical connections can also be used to electrostatically chuck the wafer to the support assembly. A rotary seal or seals (which may be low friction O- rings) are used to maintain a process pressure while still allowing substrate assembly rotation. Vacuum pumps can be connected to ports which are used to chuck the wafer. The pumps can also be used to differentially pump the region between a pair of rotary seals when two or more rotary seals are present.