Compositions and Methods for the Electrodeposition of Nanotwinned Copper

A copper electroplating solution comprising a copper salt, a source of halide ions, and a linear or branched polyhydroxyl. The copper electroplating solution is used to deposit copper having a high density of nanotwinned columnar copper grains on a substrate. The linear or branched polyhydroxyl may...

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Hauptverfasser: Najjar, Elie H, Braye, Stephan I, Whitten, Kyle M, Han, Jianwen, Ye, Pingping, Richardson, Thomas B
Format: Patent
Sprache:eng
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Zusammenfassung:A copper electroplating solution comprising a copper salt, a source of halide ions, and a linear or branched polyhydroxyl. The copper electroplating solution is used to deposit copper having a high density of nanotwinned columnar copper grains on a substrate. The linear or branched polyhydroxyl may comprise a reaction product between 2,3-epoxy-1-propanol and aminic alcohol or ammonium alcohol.