Abstract
For the first time, hot-carrier degradation (HCD) is simulated in non-planar field-effect transistors with a fin-shaped channel (FinFETs). For this purpose, a physical model considering single-carrier and multiple-carrier silicon–hydrogen bond breaking processes and their superpositions is used. To calculate the bond-dissociation rate, carrier energy distribution functions are used, which are determined by solving the Boltzmann transport equation. A HCD analysis shows that degradation is localized in the channel region adjacent to the transistor drain in the top channel-wall region. Good agreement between the experimental and calculated degradation characteristics is achieved with the same model parameters which were used for HCD reproduction in planar short-channel transistors and high-power semiconductor devices.
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