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Temperature-Aware Electromigration Analysis with Current-Tracking in Power Grid Networks
电网网络中具有电流跟踪功能的温度感知电迁移分析
電力グリッドネットワークにおける電流追跡による温度認識エレクトロマイグレーション分析
전력망 네트워크에서 전류 추적을 통한 온도 인식 일렉트로마이그레이션 분석
Análisis de electromigración consciente de la temperatura con seguimiento de corriente en redes eléctricas
Analyse d'électromigration sensible à la température avec suivi du courant dans les réseaux électriques
Анализ электромиграции с учетом температуры с отслеживанием тока в электрических сетях
Jing Wang 王晶, Yi-Ci Cai 蔡懿慈, Qiang Zhou 周强
Department of Computer Science and Technology, Tsinghua University, Beijing 100084, China
中国 北京 清华大学计算机科学与技术系
Journal of Computer Science and Technology, 30 September 2021
Abstract

Electromigration (EM) is a severe reliability issue in power grid networks. The via array possesses special EM characteristics and suffers from Joule heating and current crowding, closely related to EM violations. In this study, a power grid EM analysis method was developed to solve temperature variation effects for the via array EM.

The new method is based on the temperature-aware EM model, which considers the effects of self-heating and thermal coupling of interconnected lines in a power grid. According to the model, the proposed methodology introduces a locality-driven strategy and current tracking to perform full-chip EM assessment for multilayered power grids. The results show that temperature due to Joule heating indeed has significant impacts on the via EM failure.

The results further demonstrate that the proposed method might reasonably improve efficiency while ensuring the accuracy of the analysis.
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