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To increase the density of input/output connections, the polymer‐filled through‐silicon vias (PF‐TSVs) were proposed recently. To analyze the reliability of the PF‐TSVs, multiphysics characterization is conducted in this paper. The time‐domain finite‐element method is used to cosolve the heat conduction and thermal stress equations. Temperature‐dependent materials' parameters such as thermal conductivity,...
Multiconductor transmission lines have found a wide range of applications, as power lines, as high‐speed interconnects, and as on‐chip interconnects. Electromagnetic interference (EMI) can be described in terms of plane waves that couple to these lines, leading to unwanted disturbance. This paper presents a delayed spectral formulation for the analysis of plane‐wave coupling to multiconductor transmission...
The issue of waveport modeling for the numerical simulation of electromagnetic devices using the discontinuous Galerkin time‐domain (DGTD) method is investigated. A new implementation of the waveport boundary condition (WPBC) is presented along with a fast evaluation of the required convolution. The performance of the WPBC for the DGTD simulation is then compared with that of the first‐order absorbing...
Recently, we presented a novel method for pole residue equivalent system solver (PRESS). In this work, we provide the exact solution of local fit types 1, 2, and 3. We also modify the original algorithm to conduct parallel search for optimal solution across all frequencies, instead of targeting only the peak error. We further demonstrate PRESS through application to several numerical examples that...
This paper presents a combined electrothermal formulation of the partial element equivalent circuit (PEEC) method. It is shown that the distributed thermal problem can be formulated as an equivalent thermal network that shares the same topological and geometrical properties of the PEEC equivalent model. Temperature‐dependent thermal heat conduction and convection models are adopted thus leading to...
The propagation of stochastic electromagnetic fields can be accurately modeled using the auto‐ and cross‐correlation spectra of the field components. In this work, we introduce the framework of principal component analysis for reducing the computational cost of handling stochastic electromagnetic fields described by correlation matrices. We consider noisy electromagnetic fields originating from stationary...
A solution for the coupling of stochastic electromagnetic fields to multiconductor transmission lines (MTLs) is presented in this article. The presented method is suitable for MTLs of any geometry that fulfills the conditions of transmission line theory. The simulation model is based on the Baum‐Liu‐Tesche equations using complex per‐unit‐length parameters. The model is validated against the method...
Electrical sheets of electrical machines are laminated to reduce eddy current loss. However, a series of punching and pressing processes form random galvanic contacts at the edges of the sheets. These galvanic contacts are random in nature and cause an additional eddy current loss in the laminated cores. In this paper, a stochastic Galerkin finite element method is implemented to consider random interlaminar...
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