Method for planar electroplating

Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Coating selected area

Reexamination Certificate

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C205S123000, C205S182000, C205S210000, C205S221000, C205S222000

Reexamination Certificate

active

07449098

ABSTRACT:
A disclosed form of mechanically assisted electroplating leads to a flat, thin, overburden. In one example, an accelerator is deposited on a copper surface and mechanically removed in a simplified CMP-like apparatus. The wafer is then plated in an electrolyte containing little or no accelerating additives.

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