MULTIPLE COMPLEMENTARY GAS DISTRIBUTION ASSEMBLIES

摘要

Described herein are exemplary apparatuses having multiple gas distribution assemblies in accordance with one embodiment. In one embodiment, the apparatus includes two or more gas distribution assemblies. Each gas distribution assembly has orifices through which at least one process gas is introduced into a processing chamber. The two or more gas distribution assemblies may be designed to have complementary characteristic radial film growth rate profiles.