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METHOD OF ELECTROPLATING METAL INTO RECESSED FEATURE AND ELECTROPLATING LAYER IN RECESSED FEATURE
METHOD OF ELECTROPLATING METAL INTO RECESSED FEATURE AND ELECTROPLATING LAYER IN RECESSED FEATURE
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机译:将金属电镀到后处理特征中的方法以及后处理特征中的电镀层
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摘要
A method of electroplating a metal into a recessed feature is provided, which includes: contacting a surface of the recessed feature with an electroplating solution comprising metal ions, an accelerator additive, a suppressor additive and a leveler additive, in which the recessed feature has at least two elongated regions and a cross region laterally between the two elongated regions, and a molar concentration ratio of the accelerator additive: the suppressor additive: the leveler additive is (8-15):(1.5-3):(0.5-2); and electroplating the metal to form an electroplating layer in the recessed feature. An electroplating layer in a recessed feature is also provided.
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