Contact spacer formation using atomic layer deposition

A contact structure in a semiconductor device includes a layer of dielectric material and a via formed through the dielectric material. The contact structure further includes a spacer formed on sidewalls of the via using atomic layer deposition (ALD) and a metal deposited in the via.

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Bibliographische Detailangaben
Hauptverfasser: JOSHI AMOL R, CHENG NING, AGARWAL ANKUR B, TAKAGI NORIMITSU, NGO MINH V, HUI ANGELA T, LI WENMEI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A contact structure in a semiconductor device includes a layer of dielectric material and a via formed through the dielectric material. The contact structure further includes a spacer formed on sidewalls of the via using atomic layer deposition (ALD) and a metal deposited in the via.