TY - JOUR
T1 - Very low Schottky barrier to n-type silicon with PtEr-stack silicide
AU - Tang, X.
AU - Katcki, J.
AU - Dubois, Emmanuel
AU - Reckinger, N.
AU - Ratajczak, J.
AU - Larrieu, G.
AU - Loumaye, P.
AU - Nisole, O.
AU - Bayot, V.
PY - 2003/11/1
Y1 - 2003/11/1
N2 - We investigate Er silicide formed on n-type silicon. In order to protect the Er from oxidation during the formation of Er silicide in non-UHV conditions, a Pt layer is deposed successively on top of Er layer. Surprisingly, we observe that Pt remains essentially unaffected in the formation of Er silicide at temperatures lower than 700 °C. We find that silicidation process is fully completed by rapid thermal annealing at 500 °C. A simplified method of analysis considering the final Schottky barrier MOSFET application has been used to characterize the Schottky barrier of the PtEr-stack silicide system. A very low apparent Schottky barrier (smaller than 0.1 eV) on a n-type silicon substrate with a concentration of 1.4×10 cm in the active region has been obtained.
AB - We investigate Er silicide formed on n-type silicon. In order to protect the Er from oxidation during the formation of Er silicide in non-UHV conditions, a Pt layer is deposed successively on top of Er layer. Surprisingly, we observe that Pt remains essentially unaffected in the formation of Er silicide at temperatures lower than 700 °C. We find that silicidation process is fully completed by rapid thermal annealing at 500 °C. A simplified method of analysis considering the final Schottky barrier MOSFET application has been used to characterize the Schottky barrier of the PtEr-stack silicide system. A very low apparent Schottky barrier (smaller than 0.1 eV) on a n-type silicon substrate with a concentration of 1.4×10 cm in the active region has been obtained.
UR - http://www.scopus.com/inward/record.url?scp=0043231388&partnerID=8YFLogxK
U2 - 10.1016/S0038-1101(03)00256-9
DO - 10.1016/S0038-1101(03)00256-9
M3 - Article
AN - SCOPUS:0043231388
SN - 0038-1101
VL - 47
SP - 2105
EP - 2111
JO - Solid-State Electronics
JF - Solid-State Electronics
IS - 11
ER -