Wafer cleaning apparatus
First Claim
1. A method for plating a metal film onto a surface of a seed layer ofa substrate, and for etching the metal film, comprising:
- in a plating section, plating a metal film onto a surface of a seed layer of a substrate; and
in a cleaning section, ejecting, from above said metal film, an etching solution only onto a peripheral portion of said metal film for removing said peripheral portion of said metal film and a peripheral portion of said seed layer while holding and rotating said substrate with said peripheral portion of said metal film facing upwardly.
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Abstract
An object of the present invention is to provide a wafer cleaning apparatus for cleaning wafers that have received various processing such as copper plating and chemical mechanical polishing. An apparatus for cleaning front and back surfaces of a wafer with solution while rotating the wafer that has been subjected to a fabrication process is disclosed. The apparatus comprises cleaning nozzles for spraying a cleaning solution, respectively, onto a front surface of the wafer that has been processed and onto a back surface thereof and also comprises an etching nozzle for spraying an etching solution onto a vicinity of the outer periphery of the wafer.
45 Citations
13 Claims
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1. A method for plating a metal film onto a surface of a seed layer of
a substrate, and for etching the metal film, comprising: -
in a plating section, plating a metal film onto a surface of a seed layer of a substrate; and in a cleaning section, ejecting, from above said metal film, an etching solution only onto a peripheral portion of said metal film for removing said peripheral portion of said metal film and a peripheral portion of said seed layer while holding and rotating said substrate with said peripheral portion of said metal film facing upwardly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification