Process variation estimation for passive ladder circuit by means of interval analysis

In this article a new technique of process variation estimation in electrical circuit is presented. Technique is based on interval analysis application for a ladder circuit. Using this particular class of electrical circuit high speed of calculation could be achieved which is important in optimization and automated synthesis. In the article general ability of the technique application for a resistor circuit (with real impedance) is shown. Also ways of the technique extension for general circuit (with complex impedance) is discussed. Now the technique application is limited to passive network. The numerical experiments showed an agreement obtained results with statistical modeling with Monte Carlo Method. Further development of the technique is the extension to microwave circuit.