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In the realm of lithography, Optical Proximity Correction (OPC) is a crucial resolution enhancement technique that optimizes the transmission function of photomasks on a pixel-based to effectively counter Optical Proximity Effects (OPE).…

Optics · Physics 2024-12-20 Ruixiang Chen , Yang Zhao , Haoqin Li , Rui Chen

Optical proximity correction (OPC) is a widely-used resolution enhancement technique (RET) for printability optimization. Recently, rigorous numerical optimization and fast machine learning are the research focus of OPC in both academia and…

Computer Vision and Pattern Recognition · Computer Science 2023-03-23 Wenqian Zhao , Xufeng Yao , Ziyang Yu , Guojin Chen , Yuzhe Ma , Bei Yu , Martin D. F. Wong

As the feature size of integrated circuits continues to decrease, optical proximity correction (OPC) has emerged as a crucial resolution enhancement technology for ensuring high printability in the lithography process. Recently, level…

Image and Video Processing · Electrical Eng. & Systems 2023-11-01 Xing-Yu Ma , Shaogang Hao

As feature sizes shrink to the nanometer scale, accurately transferring circuit patterns from photomasks to silicon wafers becomes increasingly challenging. Optical proximity correction (OPC) is widely used to ensure pattern fidelity and…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Yuting Hu , Lei Zhuang , Chen Wang , Ruiyang Qin , Hua Xiang , Gi-joon Nam , Jinjun Xiong

The rapid evolution of the electronics industry, driven by Moore's law and the proliferation of integrated circuits, has led to significant advancements in modern society, including the Internet, wireless communication, and artificial…

Applied Physics · Physics 2024-09-25 Guojin Chen , Hao Geng , Bei Yu , David Z. Pan

As integrated circuit (IC) dimensions shrink below the lithographic wavelength, optical lithography faces growing challenges from diffraction and process variability. Model-based optical proximity correction (OPC) and inverse lithography…

Machine Learning · Computer Science 2025-12-25 Yuting Hu , Lei Zhuang , Hua Xiang , Jinjun Xiong , Gi-Joon Nam

Lithography, transferring chip design masks to the silicon wafer, is the most important phase in modern semiconductor manufacturing flow. Due to the limitations of lithography systems, Extensive design optimizations are required to tackle…

Machine Learning · Computer Science 2024-05-07 Haoyu Yang , Haoxing Ren

Continuous scaling of the VLSI system leaves a great challenge on manufacturing and optical proximity correction (OPC) is widely applied in conventional design flow for manufacturability optimization. Traditional techniques conducted OPC by…

Hardware Architecture · Computer Science 2020-11-17 Guojin Chen , Wanli Chen , Yuzhe Ma , Haoyu Yang , Bei Yu

Optical phase conjugation (OPC) is a nonlinear technique used for counteracting wavefront distortions, with various applications ranging from imaging to beam focusing. Here, we present the design of a diffractive wavefront processor to…

Optics · Physics 2024-06-13 Che-Yung Shen , Jingxi Li , Tianyi Gan , Mona Jarrahi , Aydogan Ozcan

Advancements in chip design and manufacturing have enabled the processing of complex tasks such as deep learning and natural language processing, paving the way for the development of artificial general intelligence (AGI). AI, on the other…

Artificial Intelligence · Computer Science 2024-08-28 Guojin Chen , Haoyu Yang , Bei Yu , Haoxing Ren

We propose a deep learning-based data-driven framework consisting of two convolutional neural networks: i) LithoNet that predicts the shape deformations on a circuit due to IC fabrication, and ii) OPCNet that suggests IC layout corrections…

Image and Video Processing · Electrical Eng. & Systems 2020-11-02 Hao-Chiang Shao , Chao-Yi Peng , Jun-Rei Wu , Chia-Wen Lin , Shao-Yun Fang , Pin-Yen Tsai , Yan-Hsiu Liu

Differentiable optics, as an emerging paradigm that jointly optimizes optics and (optional) image processing algorithms, has made innovative optical designs possible across a broad range of applications. Many of these systems utilize…

Inverse Lithography Technology (ILT) has emerged as a promising solution for photo mask design and optimization. Relying on multi-beam mask writers, ILT enables the creation of free-form curvilinear mask shapes that enhance printed wafer…

Computer Vision and Pattern Recognition · Computer Science 2024-11-13 Haoyu Yang , Haoxing Ren

Recent advances in photonic inverse design have demonstrated the ability to automatically synthesize compact, high-performance photonic components that surpass conventional, hand-designed structures, offering a promising path toward…

Optics · Physics 2026-02-18 Hongjian Zhou , Haoyu Yang , Nicholas Gangi , Tianle Xu , Rena Huang , Jiaqi Gu

VLSI mask optimization is one of the most critical stages in manufacturability aware design, which is costly due to the complicated mask optimization and lithography simulation. Recent researches have shown prominent advantages of machine…

Machine Learning · Computer Science 2019-12-17 Haoyu Yang , Wei Zhong , Yuzhe Ma , Hao Geng , Ran Chen , Wanli Chen , Bei Yu

Optical proximity correction (OPC) is a vital step to ensure printability in modern VLSI manufacturing. Various OPC approaches based on machine learning have been proposed to pursue performance and efficiency, which are typically…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Xiaoxiao Liang , Haoyu Yang , Kang Liu , Bei Yu , Yuzhe Ma

Optimizing shapes and topology of physical devices is crucial for both scientific and technological advancements, given its wide-ranging implications across numerous industries and research areas. Innovations in shape and topology…

Computational Physics · Physics 2023-10-02 Alexander Luce , Rasoul Alaee , Fabian Knorr , Florian Marquardt

Portrait customization (PC) has recently garnered significant attention due to its potential applications. However, existing PC methods lack precise identity (ID) preservation and face control. To address these tissues, we propose Diff-PC,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Yifang Xu , Benxiang Zhai , Chenyu Zhang , Ming Li , Yang Li , Sidan Du

With the feature size continuously shrinking in advanced technology nodes, mask optimization is increasingly crucial in the conventional design flow, accompanied by an explosive growth in prohibitive computational overhead in optical…

Computer Vision and Pattern Recognition · Computer Science 2023-03-23 Guojin Chen , Ziyang Yu , Hongduo Liu , Yuzhe Ma , Bei Yu

Accurate labeling is essential for supervised deep learning methods. However, it is almost impossible to accurately and manually annotate thousands of images, which results in many labeling errors for most datasets. We proposes a local…

Computer Vision and Pattern Recognition · Computer Science 2023-03-09 Jiawei Liu , Huijie Fan , Qiang Wang , Wentao Li , Yandong Tang , Danbo Wang , Mingyi Zhou , Li Chen
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