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Method and apparatus for improving interfacial chemical reactions in electroless depositions of metals
Method and apparatus for improving interfacial chemical reactions in electroless depositions of metals
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机译:改进金属化学沉积中界面化学反应的方法和装置
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摘要
A method and apparatus for improving interfacial chemical reactions in electroless depositions of metals, in which the substrate to be plated is pre-heated prior to its immersion in the various processing solutions that require elevated temperatures, and especially before immersion in the electroless plating solution. The pre-heating is carried out to a temperature that is needed to bring about the desired chemical reaction at the substrate-solution interface, allowing the bath of that process step to operate significantly below the temperature that would have been needed if the panel had not been pre-heated, and below the solution temperature of current practice. According to another aspect of the present invention, the electroless plating apparatus for plating a workpiece operates in a vertical mode and it comprises a heating station, with the panel to be plated returning to the heating station as dictated by the temperature required for a given process step. Alternatively, the heating station is incorporated into the hoist system of such apparatus. In still another aspect of the present invention, the electroless plating apparatus operates in a horizontal mode and comprises at least one heating station.
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