Abstract
Due to the temperature-dependent resistivity of power distribution network (PDN) interconnects, a wiser and necessary strategy is to proceed the electrical-thermal cosimulation in order to include the thermal effects caused by Joule heating. As a natural domain decomposition method (DDM), in this article, a discontinuous Galerkin (DG) method is proposed to facilitate the steady-state electrical and thermal coanalysis. With the intention to avoid solving a globally coupled steady-state matrix system equations resulted from the implicit numerical flux in DG, the block Thomas method is deployed to solve the entire domain in a subdomain-by-subdomain scheme. As a direct solver, the block Thomas method is free of convergence problem frequently occurring in iterative methods, such as block Gauss-Seidel method. The capability of the proposed DG method in handling multiscale and complex 3-D PDNs is validated by several representative examples.
Recommended Citation
P. Li et al., "DC IR-Drop Analysis Of Multilayered Power Distribution Network By Discontinuous Galerkin Method With Thermal Effects Incorporated," IEEE Transactions on Components, Packaging and Manufacturing Technology, vol. 10, no. 6, pp. 1035 - 1042, article no. 9092985, Institute of Electrical and Electronics Engineers; Electronics Packaging Society, Jun 2020.
The definitive version is available at https://doi.org/10.1109/TCPMT.2020.2992925
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
DC IR-drop; discontinuous Galerkin (DG) method; electrical-thermal cosimulation; integrated circuits (ICs); power distribution network (PDN); steady state
International Standard Serial Number (ISSN)
2156-3985; 2156-3950
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers; Electronics Packaging Society, All rights reserved.
Publication Date
01 Jun 2020
Comments
National Natural Science Foundation of China, Grant 61674105