Efficient Transient Noise Analysis in Circuit Simulation

Efficient Transient Noise Analysis in Circuit Simulation

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The current technological progress in microelectronics is driven by the desire to decrease feature sizes, increase frequencies and the need for low supply voltages. Amongst other effects the signal-to-noise ratio decreases and the transient noise analysis becomes necessary in the simulation of electronic circuits. Taking the inner electronic noise into account by means of Gaussian white noise currents, mathematical modelling leads to stochastic differential algebraic equations (SDAEs) with a large number of small noise sources. The simulation of such systems requires an efficient numerical time integration by mean-square convergent numerical methods.In this thesis, adaptive linear multi-step Maruyama schemes to solve stochastic differential equations (SDEs) and SDAEs are developed. A reliable local error estimate for systems with small noise is provided and a strategy for controlling the step-size and the number of solution paths simultaneously in one approximation is presented.Numerical experiments on industrial relevant real-life applications illustrate the theoretical findings.A noisy MOSFET inverter We consider a model of an inverter circuit with a MOSFET under the influence of thermal noise. The corresponding circuit diagram is given in Figure 2.7. ith A MOSFET is modelled as a current source from source toanbsp;...

Title:Efficient Transient Noise Analysis in Circuit Simulation
Author:Thorsten Sickenberger
Publisher:Logos Verlag Berlin GmbH - 2008


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