摘要:
Apparatus providing a low impedance RF return current path between a shield member and a pedestal in a semiconductor wafer processing chamber. The return path reduces RF voltage drop between the shield member and the pedestal during processing. The return path comprises a conductive strap connected to the pedestal and a conductive bar attached to the strap. A toroidal spring makes multiple parallel electrical connections between the conductive bar and the shield member. A support assembly, attached to a collar on the chamber wall, supports the conductive bar.
摘要:
An apparatus for cyclical depositing of thin films on semiconductor substrates, comprising a process chamber having a gas distribution system with separate paths for process gases and an exhaust system synchronized with operation of valves dosing the process gases into a reaction region of the chamber.