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Atom probe tomography (APT) in conjunction with scanning spreading resistance microscopy (SSRM) is demonstrated for the first time to profile dopant and carrier distributions in FinFET-based devices with sub-nanometer resolution. These two techniques together provide information on the degree of conformality, the dose retention and the dopant activation. These results are also compared with a methodology...
The multi-gate architecture is considered as a key enabler for further CMOS scaling. FinFETs can readily be manufactured on SOI or bulk substrates. We report for the first time an extensive benchmark of their critical electrical figures of merit. Both alternatives show better scalability than PLANAR CMOS and exhibit similar intrinsic device performance. Introducing SOI substrates and low doped fins...
We discuss several advancements over our previous report (S. Kubicek, 2006): - Introduction of conventional stress boosters resulting in 16% and 11% for nMOS and pMOS respectively. For the first time the compatibility of SMT (stress memorization technique) with high-kappa/metal gate is demonstrated. In addition, we developed a blanket SMT process that does not require a photo to protect the pMOS by...
A gate-first process was used to fabricate CMOS circuits with high performing high-K and metal gate transistors. Symmetric low VT values of plusmn 0.25 V and unstrained IDSAT of 1035/500 muA/mum for nMOS/pMOS at IOFF=100nA/mum and |VDD|=1.1 V are demonstrated on a single wafer. This was achieved using Hf-based high-k dielectrics with La (nMOS) and Al (pMOS) doping, in combination with a laser-only...
We report the simultaneous improvement of both on- and off-properties for n- and p-channel MOSFETs by means of carbon co-implantation at extension level, using conventional spike annealing. For the first time, spike-annealed NFETs with phosphorus-implanted source/drain extensions (SDE) are shown to outperform conventional As-implanted devices in the deca-nanometric range. Parameters such as on-current,...
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