Apparatus for hot wall reactive ion etching using a dielectric or metallic liner with temperature control to achieve process stability

摘要

The present invention relates to a method and apparatus for etching semiconductor devices where the undesirable deposition of films on the internal surfaces of the apparatus are prevented during the etching process. The system for etching devices provides an etching chamber having a deposition resistant surface, a holder for holding the device to be etched, and a heater for heating the deposition resistant surface to a temperature between 100 C. to 600 C. to impede the formation of films on the walls of the chamber. The etching system may further include the deposition resistant surface surrounding the holder while not interfering with the plasma used to etch the substrate.