Patent ID: 7084059

Claim:
A method for dished metal redevelopment of a semiconductor wafer by moving a surface of the wafer against a moving polishing pad, the method comprising the steps of: providing an electroless plating solution at an interface between the wafer and the polishing pad, the wafer having dished metal within trenches of an interlayer dielectric from a previous manufacturing operation and the electroless plating solution having a chloride leveler, an electrolyte of metal ions, a metal-ion complexing agent and a reducing agent; depositing electroless plated metal onto the dished metal within the trenches of the interlayer dielectric from the electroless plating solution without depositing the electroless plated metal on the interlayer dielectric to redevelop the trenches of the interlayer dielectric; and polishing the wafer to polish metal with a reduced polishing pressure during electroless deposition onto the dished trenches to replace the dished metal of the trenches of the interlayer dielectric and redevelop the semiconductor wafer.