Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf
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Controlled Silicidation of Silicon Nanowires using Flash Lamp Annealing
Among other new device concepts, nickel silicide (NiSix)-based Schottky barrier nanowire transistors are projected to supplement down-scaling of the complementary metal-oxide-semiconductor (CMOS) technology as its physical limits are reached. Control over the NiSix phase and its intrusions into the nanowire are essential for superior performance and down-scaling of these devices. Several works have shown control over the phase, but control over the intrusion lengths has remained a challenge. To overcome this, we report a novel millisecond-range flash-lamp-annealing (FLA)-based silicidation process. Nanowires are fabricated on silicon-on-insulator substrates using a top-down approach. Subsequently, Ni silicidation experiments are carried out using FLA. It is demonstrated that this silicidation process gives unprecedented control over the silicide intrusions. Scanning electron microscopy and high-resolution transmission electron microscopy are performed for structural characterization of the silicide. FLA temperatures are estimated with the help of simulations.
- Data publication: Controlled Silicidation of SiNW using FLA (Id 33452) HZDR-primary research data are used by this (Id 33436) publication
Langmuir 37(2021)49, 14284-14291
Online First (2021) DOI: 10.1021/acs.langmuir.1c01862