A RF plasma generation and temperature control system for an inductively coupled plasma process chamber. The plasma generation system includes a heater that includes an elongated upper heating element substantially parallel to an elongated lower heating element, where the upper and lower heating elements are joined by one or more posts substantially perpendicular to the upper and lower heating elements. The system also including one or more RF coils featuring a crease at points of overlap with the posts. Also, a RF plasma generation system for an inductively coupled plasma process chamber, where the plasma generation system includes a heater thermally coupled to the chamber, and one or more RF coils coupled to the chamber, where the RF coils include a hollow tube having at least one flat side.