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CMOS technologies using metal/high-k damascene gate stacks with uniaxial strained silicon channels were developed. Gate electrodes of HfSix and TiN were applied to nFETs and pFETs, respectively. TiN/HfO2 damascene gate stacks and epitaxial SiGe source/drains were successfully integrated for the first time. As a result, drive currents of 1050 and 710 muA/mum at Vdd=l V, Ioff=100 nA/um and Tinv=1.6...
We present the state-of-the-art 45nm high performance bulk logic platform technology which utilizes, for the first time in the industry, ultra high NA (1.07) immersion lithography to realize highly down-scaled chip size. Fully renovated MOSFET integration scheme which features reversed extension and SD diffusion formation is established to meet Vt roll-off requirement with excellent transistor performance...
A raised source/drain extension (RSDE) pFET on (110) Si wafer is demonstrated for the first time with in-situ doped selective epitaxy technology. Roll-off has been effectively improved, resulting from the elimination of ion channeling in (110) Si. Due to the hole mobility enhancement and parasitic resistance reduction, ion of 389muA/mum (Vd= -1.0 V) has been achieved at Lmin around 30nm extracted...
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...
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