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This paper describes the fabrication and performance of CMOS transistors featuring flash lamp annealing (FLA) for 45 nm node. We show, for the first time, applying FLA prior to spike RTA as S/D annealing is effective to enhance the channel stress in PFET with epitaxially grown SiGe (eSiGe) S/D. In NFET, FLA recovers the damaged layer in S/D extension caused by implantation and suppresses the transient...
We developed a less layout-dependent epitaxially grown SiGe (eSiGe) source/drain (S/D) technique for pFET. We found that the effective stressor region of eSiGe existed only near the channel and that the volume effect of eSiGe was small. On the basis of this mechanism, a new recess RIE and a new epitaxial growth technology were developed, so that the gate-pitch dependence, S/D length dependence and...
For the first time, a novel CMOSFET structure in substrate strained-Si of lang100rang-channel on rotated wafers is presented. Low Ge concentration (10%) of SiGe layer is used in order to suppress the Vth shift and the mobility reduction caused by high channel doping. We applied Si selective epitaxial growth on recessed S/D region in SiGe layer, which is effective to induce high tensile stress and...
High performance CMOSFET technology for 45nm generation is demonstrated. The key device strategies for junction scaling, gate stack scaling and stress-induced mobility enhancement are discussed. Reversed-order junction formation improves short channel effect (SCE) drastically. Novel SiON with improved poly-Si gate depletion improves the drive current by 8%. The systematic study on the process-induced...
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