Structure comprising a barrier layer of a tungsten alloy comprising cobalt and/or nickel

An interconnection structure comprising a substrate having a dielectric layer with a via opening therein; wherein the opening has an underlayer of cobalt and/or nickel therein, barrier layer of an alloy of cobalt and/or nickel; and tungsten is provided.

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Bibliographische Detailangaben
Hauptverfasser: RANSOM CRAIG, MALHOTRA SANDRA G, PAUNOVIC MILAN, ANDRICACOS PANAYOTIS, BOETTCHER STEVEN H
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:An interconnection structure comprising a substrate having a dielectric layer with a via opening therein; wherein the opening has an underlayer of cobalt and/or nickel therein, barrier layer of an alloy of cobalt and/or nickel; and tungsten is provided.