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If not yield optimized, embedded SiGe (eSiGe) processes with aggressive transistor performance enhancements could induce high SRAM standby current and single cell failures in SRAM. In order to optimize the yield of eSiGe process, a SRAM-layout-based test structure was identified. It has the advantage of being able to be tested after silicidation or first metal level, therefore can be used as an early...
In this paper, we quantify the relation of low lateral electric field hole mobility and channel strain to the virtual source velocity of nanoscale p-type SOI MOSFET devices with effective channel length from 35 to 50 nm and show strong correlation. The mobility is modified by the application of uniaxial compressive strain in the I GPa regime to the channel by employing two stressors-(1) embedded SiGe...
We present a 45-nm SOI CMOS technology that features: i) aggressive ground-rule (GR) scaling enabled by 1.2NA/193nm immersion lithography, ii) high-performance FET response enabled by the integration of multiple advanced strain and activation techniques, iii) a functional SRAM with cell size of 0.37mum2, and iv) a porous low-k (k=2.4) dielectric for minimized back-end wiring delay. The list of FET-specific...
An optimized 4-way stress integration on partially-depleted SOI (PD-SOI) CMOS is presented. An embedded-SiGe process and a compressive-stressed liner film are used to induce compressive strain in the PMOS (PMOS "stressors"). A stress memorization process and a tensile-stressed liner film are used to induce tensile strain in the NMOS (NMOS "stressors"). With optimization, the different...
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