Patent ID: 7144805

Claim:
A method for depositing a metal into a micro-recessed structure in the surface of a microelectronic workpiece, the method comprising: contacting the surface of the microelectronic workpiece with an electroplating solution in an electroplating cell, the electroplating cell including a cathode formed by the surface of the microelectronic workpiece and an anode; electroplating to deposit a metal into the micro-recessed structure by applying a first electroplating waveform having a first current to the anode to enhance deposition of the metal at a bottom of the micro-recessed structure; and further electroplating to further deposit the metal by changing the waveform applied to the anode to a second electroplating waveform having a second current to change the time required to at least substantially fill of the micro-recessed structure, wherein the second current is greater than the first current.