Patent ID: 6494998
Filing Date: 2002-12-17
Classification: H01J

Abstract:
A processing system for processing a substrate with an ionized plasma, the system comprising:a processing chamber defining a processing space and including a substrate support therein for supporting a substrate in the processing space; a gas inlet for introducing a process gas into said processing space; a plasma source operable for creating an ionized plasma in the processing space from process gas introduced therein, the plasma source comprising: an inductive element operable for coupling electrical energy into the processing space to create an ionized plasma therein; the inductive element winding around a portion of the processing space inside the processing chamber and comprising a non-helical coil having multiple coil turns, the turns including segments thereof oriented along a chamber sidewall portion and segments thereof oriented along a chamber end wall portion for coupling energy simultaneously into the processing space through both the sidewall and end wall portions of the chamber; the inductive element being encased inside a dielectric material to physically separate the element from the processing space both along the sidewall portion and end wall portion while allowing the element to couple electrical energy into the processing space.