Frequency-Domain Physics-Based Analysis of semiconductor devices by a Spectral-Balance approach

In this work, the frequency-domain spectral balance technique is used for the physics-based analysis of non-linear devices and circuits. This technique assumes a very simple form when applied to the moments of Boltzmann´s transport equation, and is especially suitable for very high frequency and for multitone analysis. This approach also allows easy inclusion of frequency-dependent parameters of the semiconductor, especially important at very high frequencies (e.g. dielectric constant), and easy and straightforward coupling to the passive external environment. An example of application to a quasi-2D model with a hydrodynamic formulation of the transport equations is given, and its results are compared to a standard time-domain approach and to DC measured data