Growth, ambient stability and electrical characterisation of MgO thin films on silicon surfaces

Magnesium oxide (MgO) thin films were deposited onto silicon substrates, from an MgO target, by electron beam evaporation. The ambient stability of the MgO films and the formation of the MgO/Si interface were analysed using standard X-ray photoelectron spectroscopy (XPS) and high resolution synchrot...

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Veröffentlicht in:Microelectronic engineering 2009-07, Vol.86 (7), p.1711-1714
Hauptverfasser: Casey, P., O’Connor, E., Long, R., Brennan, B., Krasnikov, S.A., O’Connell, D., Hurley, P.K., Hughes, G.
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container_end_page 1714
container_issue 7
container_start_page 1711
container_title Microelectronic engineering
container_volume 86
creator Casey, P.
O’Connor, E.
Long, R.
Brennan, B.
Krasnikov, S.A.
O’Connell, D.
Hurley, P.K.
Hughes, G.
description Magnesium oxide (MgO) thin films were deposited onto silicon substrates, from an MgO target, by electron beam evaporation. The ambient stability of the MgO films and the formation of the MgO/Si interface were analysed using standard X-ray photoelectron spectroscopy (XPS) and high resolution synchrotron radiation based photoemission. Ambient exposure of the deposited films results in the growth of magnesium hydroxide and magnesium carbide species which can be desorbed by annealing at 500 °C in an inert atmosphere. Electrical characterisation has been performed on nickel silicide/MgO/Si(1 0 0) MOS structures for different dielectric thicknesses. The C– V results show no evidence of a low- k layer at the MgO/Si interface.
doi_str_mv 10.1016/j.mee.2009.03.046
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source Elsevier ScienceDirect Journals
subjects Applied sciences
Compound structure devices
C– V characterisation
Electronics
Exact sciences and technology
High resolution photoemission
MgO
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Ultrathin dielectric layers
title Growth, ambient stability and electrical characterisation of MgO thin films on silicon surfaces
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