Suppressing Oxidation-Enhanced Diffusion of Boron in Silicon With Oxygen-Inserted Layers

Autor: Daniel Connelly, Richard Burton, Nyles W. Cody, Pavel Fastenko, Marek Hytha, Robert Stephenson, Hideki Takeuchi, Keith Doran Weeks, Robert Mears
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: IEEE Journal of the Electron Devices Society, Vol 6, Pp 1173-1178 (2018)
Druh dokumentu: article
ISSN: 2168-6734
DOI: 10.1109/JEDS.2018.2872689
Popis: Oxygen-Inserted (OI) layers are shown to shield a buried boron profile from oxidation enhanced diffusion. A TCAD model for the OI layer, including point defect and dopant trapping, as implemented in Sentaurus Process is shown to match experimental results, demonstrating the retention of steeper boron profiles after oxidation. Incorporation of the oxygen insertion layers into a CMOS process increases on-current and reduces threshold variability and mismatch.
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