Patent ID: 7964058

Claim:
A processing system for etching a substrate comprising: a temperature controlled chemical treatment chamber; a wall temperature control unit coupled to a wall heating element coupled to said temperature controlled chemical treatment chamber and configured to control a chemical treatment chamber temperature ranging from about 10° C. to about 200° C.; a temperature controlled substrate holder mounted within said chemical treatment chamber, wherein said temperature controlled substrate holder is configured to support said substrate having one or more exposed surface layers; a temperature control component coupled to said temperature controlled substrate holder and configured to control a substrate holder temperature ranging from about 10° C. to about 50° C., wherein said temperature control component comprises a cooling channel for fluid flow, or a heating channel for fluid flow, or both a cooling channel and a heating channel; a vacuum pumping system coupled to said chemical treatment chamber; a gas distribution system coupled to said chemical treatment chamber and configured to introduce one or more process gases to said chemical treatment chamber in order to chemically alter said exposed surface layers on said substrate, wherein said gas distribution system comprises a temperature controlled portion exposed to said one or more process gases in said chemical treatment chamber; and a gas distribution system temperature control unit coupled to a gas distribution heating element coupled to said temperature controlled portion and configured to control a gas distribution system temperature ranging from about 10° C. to about 200° C., wherein said gas distribution system comprises at least one gas distribution plate, said gas distribution plate comprises one or more gas injection orifices.