Substrate optimization based on semi-analytical techniques

Substrate optimization based on semi-analytical techniques

Several methods are presented for highly efficient calculation of substrate noise transport in integrated circuits. A three-dimensional Green’s function-based boundary element method, accelerated through use of the fast Fourier transform, allows the computation of sensitivities with respect to all substrate parameters at a considerably higher speed than any methods reported in the literature. S...

Semi-Parametric Techniques for Multi-Response Optimization

Solving Disjunctive Optimization Problems by Generalized Semi-infinite Optimization Techniques

We describe a new possibility to model disjunctive optimization problems as generalized semi-infinite programs. In contrast to existing methods, for our approach neither a conjunctive nor a disjunctive normal form is expected. Applying existing lower level reformulations for the corresponding semi-infinite program we derive conjunctive nonlinear problems without any logical expressions, which c...

Evaluation of Two Semi-analytical Techniques in Air Quality Applications

In this article an evaluation of two semi-analytical techniques is carried out, considering the quality and accuracy of these techniques in reproducing the ground-level concentration values of passive pollutant of the advection-diffusion equation by the Laplace transform technique. The second is a Lagrangian model based on solution of the Langevin equation through the Picard Iterative Method. T...

Semi-analytical Approach to Three-Dimensional Shape Optimization Problems