Patent ID: 11964068
Assignee: APPLIED MATERIALS, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC A  H  B | IPC A

Claim 11:
12. An atomic oxygen cleaning chamber, comprising:
a process chamber;
a cooling chamber coupled to the process chamber;
a divider sealingly separating the process chamber from the cooling chamber;
an ultraviolet (UV) radiation generator disposed in the cooling chamber and outside of the process chamber, and operable to provide UV radiation through the divider into the processing chamber;
a pedestal disposed in the process chamber;
a gas distribution assembly operable to distribute ozone over an upper surface of the pedestal;
a coolant distribution assembly, the coolant distribution assembly having a coolant gas inlet, a coolant gas outlet, and a coolant source operable to distribute cooling gas across the cooling chamber, and a coolant pump operable to force cooling gas across the cooling chamber to the coolant gas outlet; and
a coolant recirculation assembly, the coolant recirculation assembly comprising a coolant flow line coupling the coolant gas outlet of the cooling chamber with the coolant gas inlet of the cooling chamber, and operable to recirculate the cooling gas from the coolant gas outlet of the cooling chamber to the coolant gas inlet of the cooling chamber without entering the process chamber.