ELECTRO-OXIDATIVE METAL REMOVAL IN THROUGH MASK INTERCONNECT FABRICATION
In one implementation a cathode for electrochemical metal removal has a generally disc-shaped body and a plurality of channels in the generally disc-shaped body, where the channels are configured for passing electrolyte through the body of the cathode. The channels may be fitted with non-conductive...
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| creator | THORKELSSON, Kari ABRAHAM, Richard G MAYER, Steven T |
| description | In one implementation a cathode for electrochemical metal removal has a generally disc-shaped body and a plurality of channels in the generally disc-shaped body, where the channels are configured for passing electrolyte through the body of the cathode. The channels may be fitted with non-conductive (e.g., plastic) tubes that in some embodiments extend above the body of the cathode to a height of at least 1 cm. The cathode may also include a plurality of indentations at the edge to facilitate electrolyte flow at the edge of the cathode. In some embodiments the cathode includes a plurality of non-conductive fixation elements on a conductive surface of the cathode, where the fixation elements are attachable to one or more handles for removing the cathode from the electrochemical metal removal apparatus. |
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The channels may be fitted with non-conductive (e.g., plastic) tubes that in some embodiments extend above the body of the cathode to a height of at least 1 cm. The cathode may also include a plurality of indentations at the edge to facilitate electrolyte flow at the edge of the cathode. 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| subjects | APPARATUS THEREFOR BASIC ELECTRIC ELEMENTS CHEMISTRY ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELECTROLYTIC OR ELECTROPHORETIC PROCESSES METALLURGY PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROMOBJECTS SEMICONDUCTOR DEVICES |
| title | ELECTRO-OXIDATIVE METAL REMOVAL IN THROUGH MASK INTERCONNECT FABRICATION |
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