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This paper demonstrates for the first time a low cost, low complexity process CMOS Hk/MG for low-power applications with Vth controlled by gate Ion-Implantation (I/I) and High-k capping for NMOS and PMOS, respectively. Novel advanced electrical and physical characterizations provide unique insights about the underlying mechanism of Vth adjust induced by I/I into the metal. Improved RO performance,...
We report low Vt (Vt,Lg=1μm=±0.26V) high performance CMOS devices with ultra-scaled Tinv down to Tinv~8Å using a gate-first dual Si/SiGe channel low-complexity integration approach. Compared to a dual dielectric cap gate-first integration scheme, the devices fabricated with the novel scheme show for the same high-k/metal gate stack (1) 3Å reduction in nMOS and pMOS Tinv (2) 220mV lower long channel...
We are reporting for the first time on the use of simple resist-based selective high-k dielectric capping removal processes of La2O3, Dy2O3 and Al2O3 on both HfSiO(N) and SiO2 to fabricate functional HK/MG CMOS ring oscillators with 40% fewer process steps compared to our previous report [1]. Both selective high-k removal (using wet chemistries) and resist strip processes (using NMP and APM) have...
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...
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