Patent ID: 7661386
Filing Date: 2010-02-16
Classification: C23C,H01J,H01L

Abstract:
1. A film-forming apparatus comprising: a processing container that defines a chamber, a pedestal arranged in the chamber, on which a substrate to be processed can be placed, a showerhead provided opposite to the pedestal, which has a large number of gas-discharging holes, a gas-supplying mechanism that supplies a process gas into the chamber through the showerhead, a showerhead-temperature controlling unit that controls a temperature of the showerhead, and an inverting mechanism that inverts the showerhead by turning the showerhead outwardly from the chamber, the showerhead comprising a horizontal portion and a supporting portion extending upward from a peripheral region of said horizontal portion, said supporting portion having an interior wall surface extending upward from said horizontal portion to define, together with said horizontal portion, a cavity, said showerhead further comprising ribs extending radially inward from said interior wall surface into said cavity.