Electroplating cell based upon rotational plating solution flow

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

Reexamination Certificate

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C204S275100, C205S123000, C205S148000, C427S421100

Reexamination Certificate

active

06984302

ABSTRACT:
The invention discloses a method of electroplating a material onto a semiconductor substrate. A substrate is placed in a cylindrical processing chamber enclosure. A nozzle for spraying a liquid electroplating solution opposes the top surface of the substrate. The electroplating solution flows through the nozzle and outward angularly from the tip of the nozzle, so that the solution flows rotationally on the surface of the substrate.

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R. Byron Bird, et al, “Transport Phenomena,” 1960, pp. 219-220, Department of Chemical Engineering, University of Wisconsin, Madison, Wisconsin, John Wiley & Sons.

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