Patent ID: 6869500

Claim:
An apparatus for processing a wafer comprising: a first chamber for receiving a wafer therein; a second chamber for receiving the first chamber therein, an inner surface of the second chamber facing an outer surface of the first chamber for forming an adiabatic vacuum space in-between the second chamber and the first chamber; a heating means for providing the first chamber with a radiant heat to heat the first chamber; a first cooling means provided at an outer portion of the first chamber for cooling the first chamber; a second cooling means installed in the first chamber for cooling the wafer and the first chamber; a reaction gas introducing line connected to the first chamber for introducing a reaction gas for processing the wafer received in the first chamber; and an exhausting line connected to the first chamber for exhausting a by-product produced during processing the wafer using the reaction gas and for evacuating the first chamber, wherein the exhausting line is provided with an auxiliary exhausting line connected to adiabatic vacuum space for evacuating the adiabatic vacuum space to a same pressure as the first chamber.