Patent ID: 7399713
Filing Date: 2008-07-15
Classification: C23F,H01L,Y10S

Abstract:
1. A process for treating an electrochemically processed workpiece, the workpiece having a first side, an opposing second side, and a peripheral edge defined between the first and second sides, comprising: (a) placing the workpiece in a reaction chamber that includes a first chamber portion receiving the first side of the workpiece and a second chamber portion receiving the second side of the workpiece, the first chamber portion and the second chamber portion being defined by separable first and second reactor members that cooperatively support the workpiece; (b) supplying a first fluid to the first chamber portion to expose the first side to the first fluid while excluding at least a major portion of the second side from exposure to the first fluid; and (c) supplying a second fluid to the second chamber portion to expose the second side to the second fluid, wherein at least one of the first and second fluids comprises an etchant for removal of a metal or oxide film from an exposed surface portion of the workpiece.