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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...
This letter reports that the effective work function (eWF) of Ni-Fully Silicided (Ni-FUSI) devices with HfSiON gate dielectrics can be modulated toward the silicon conduction band-edge by deposition of an ultra-thin Dy2O3 cap layer on the host dielectric. The obtained eWF depends on the deposited cap layer thickness and the Ni-FUSI phase, with 10 Aring Dy2O3 cap resulting in DeltaeWF ap 400 meV and...
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