Abstract
Impacts of random dopant fluctuations (RDFs) on the performance of an optimized double-gate (DG) tunneling FET (TFET) are studied using 3-D device simulations. The sensitivity of the TFET performance with a high-k gate dielectric to RDF is explored in this paper. Sano's approach is used to generate random doping profiles for statistical device simulation. It is found that TFET suffers from dramatic shift and fluctuations in electrical parameters (Vth, gm and SS for instance) due to RDF, thus emerging a further impact on circuit performance.
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