Patent ID: 6673216
Filing Date: 2004-01-06
Classification: C25D,H01L

Abstract:
An apparatus for electrochemically processing a microelectronic workpiece, comprising:a reactor vessel; a cup disposed in the reactor vessel, the cup being configured to contain an electrochemical process fluid; an anode disposed in the cup and coupleable to a source of electrical potential; and a support member for a microelectronic workpiece, the support member including: an engaging member configured to engage the microelectronic workpiece; a shaft coupled to the engaging member and rotatable about a shaft axis, the shaft having a first end with a first electrical contact portion toward the first end, a second end opposite the first end, and an internal channel along the shaft axis between the first and second ends, the shaft further having at least one first hole toward the first end with the first hole extending radially from the channel to an external surface of the shaft, the shaft still further having at least one second hole toward the second end with the second hole extending from the channel to the external surface, the second hole being in fluid communication with the microelectronic workpiece when the microelectronic workpiece is supported by the support member, the shaft being electrically coupled to the microelectronic workpiece when the microelectronic workpiece is supported by the support member; a housing rotatably receiving the shaft, the housing having a fluid passage coupleable to a fluid source and/or a fluid sink, and in fluid communication with the at least one first hole when the shaft rotates relative to the housing, the housing having a second electrical contact portion axially engaged with the first electrical contact portion to transmit electrical signals between the first and second electrical contact portions while the shaft rotates relative to the housing; and a motor coupled to the shaft to rotate the shaft relative to the housing.