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A novel methodology for accurate and efficient static timing analysis is presented in this paper. The methodology is based on finding a frequency domain model for the gates which allows uniform treatment of the gates and interconnects. It is shown that despite the highly nonlinear overall gate model, a frequency domain model of the gate with the model parameters, gate moments, as functions of the...
This paper examines the implications of decoupling the FDTD grids between and FDTD Electromagnetic (FDTD-EM) and an FDTD Hydrodynamic semiconductor simulator. Excitation methods and responses are examined to determine feasibility for decoupling the space and time grids for significant computational savings. Additionally, a new fully-explicit leap-frog discretization of the Hydrodynamic model is is...
An approach for the transient simulation of coupled transmission lines is described. By treating the line voltage/current distributions as state variables, the Telegrapher equation is transformed into an ordinary differential equation. This allows the use of Backward Differentiation Formulae to discretize the time derivatives, yielding a time domain companion model of the transmission line together...
In discontinuous operation mode, voltagecommutated dc-converters show at least two additional subintervals during the repetition period, commutation-time and currentflow- duration. These pulse-widths depend on the momentary state of the circuit. In the effective system, the appertaining storages disappear, considered by a corresponding reduction of the state vector. Based on piecewise linear differential...
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