Self-Attention to Operator Learning-based 3D-IC Thermal Simulation

Fuente: arXiv
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Main Authors: Huang, Zhen, Wang, Hong, Yang, Wenkai, Tang, Muxi, Xie, Depeng, Lin, Ting-Jung, Zhang, Yu, Xing, Wei W., He, Lei
Format: Preprint
Published: 2025
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_version_ 1866917023622103040
author Huang, Zhen
Wang, Hong
Yang, Wenkai
Tang, Muxi
Xie, Depeng
Lin, Ting-Jung
Zhang, Yu
Xing, Wei W.
He, Lei
author_facet Huang, Zhen
Wang, Hong
Yang, Wenkai
Tang, Muxi
Xie, Depeng
Lin, Ting-Jung
Zhang, Yu
Xing, Wei W.
He, Lei
contents Thermal management in 3D ICs is increasingly challenging due to higher power densities. Traditional PDE-solving-based methods, while accurate, are too slow for iterative design. Machine learning approaches like FNO provide faster alternatives but suffer from high-frequency information loss and high-fidelity data dependency. We introduce Self-Attention U-Net Fourier Neural Operator (SAU-FNO), a novel framework combining self-attention and U-Net with FNO to capture long-range dependencies and model local high-frequency features effectively. Transfer learning is employed to fine-tune low-fidelity data, minimizing the need for extensive high-fidelity datasets and speeding up training. Experiments demonstrate that SAU-FNO achieves state-of-the-art thermal prediction accuracy and provides an 842x speedup over traditional FEM methods, making it an efficient tool for advanced 3D IC thermal simulations.
format Preprint
id arxiv_https___arxiv_org_abs_2510_15968
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Self-Attention to Operator Learning-based 3D-IC Thermal Simulation
Huang, Zhen
Wang, Hong
Yang, Wenkai
Tang, Muxi
Xie, Depeng
Lin, Ting-Jung
Zhang, Yu
Xing, Wei W.
He, Lei
Machine Learning
Artificial Intelligence
Hardware Architecture
Thermal management in 3D ICs is increasingly challenging due to higher power densities. Traditional PDE-solving-based methods, while accurate, are too slow for iterative design. Machine learning approaches like FNO provide faster alternatives but suffer from high-frequency information loss and high-fidelity data dependency. We introduce Self-Attention U-Net Fourier Neural Operator (SAU-FNO), a novel framework combining self-attention and U-Net with FNO to capture long-range dependencies and model local high-frequency features effectively. Transfer learning is employed to fine-tune low-fidelity data, minimizing the need for extensive high-fidelity datasets and speeding up training. Experiments demonstrate that SAU-FNO achieves state-of-the-art thermal prediction accuracy and provides an 842x speedup over traditional FEM methods, making it an efficient tool for advanced 3D IC thermal simulations.
title Self-Attention to Operator Learning-based 3D-IC Thermal Simulation
topic Machine Learning
Artificial Intelligence
Hardware Architecture
url https://arxiv.org/abs/2510.15968