Patent ID: 6547937
Filing Date: 2003-04-15
Classification: C25D,H01L

Abstract:
A processing station for processing a microelectronic workpiece comprising:a bowl assembly; a head assembly for receiving a workpiece and orienting the workpiece within the bowl assembly; a paddle assembly including a paddle and a plurality of spaced-apart fluid delivery ports, the paddle being adapted for movement relative to the workpiece when the workpiece is disposed on the head assembly within the bowl assembly and the fluid delivery ports being oriented toward the workpiece when the workpiece is disposed on the head assembly within the bowl assembly; a fluid inlet for supplying processing fluid to the bowl assembly; at least one fluid path for adjusting the position of the level of the processing fluid relative to the workpiece between a first position, wherein at least the portion of the workpiece to be processed is immersed within the processing fluid, and a second position, wherein the portion of the workpiece to be processed is not immersed within the processing fluid; and a fluid control level mechanism for selectively controlling the at least one fluid path thereby enabling the position of the level of the processing fluid relative to the workpiece to adjust between the first position and the second position.