APPARATUS AND METHOD FOR FILM DEPOSITION

摘要

A deposition apparatus 100 comprises: a heater 121 for heating a silicon wafer 101; an electrically-conductive busbar 123 for supporting the heater 121; and an electrode assembly 107 having a hollow rod electrode 108 with upper and lower openings for conducting electricity to the heater 121 and a connector 124, secured to the busbar 123, for connecting the busbars 123 to the rod electrode 108. Wafer heating by the heater 121 is conducted while a purge gas 117 is fed from the lower opening of the rod electrode 108 so that the purge gas 117 can flow through the upper opening of the rod electrode 108 and through a clearance 131 that is located at the joint surface between the busbar 123 and the connector 124 and communicates with the upper opening of the rod electrode 108.