Di Cao

Dr. Di Cao


Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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29 July 2025 in Micromachines
Verified
Journal Article
Open access
PDF file
DCDi Cao
Di Cao
HDHe Dong
He Dong
ZZZhibo Zeng
Zhibo Zeng
WZWei Zhang
Wei Zhang
XLXiaoping Li
Xiaoping Li
HYHangcheng Yu
Hangcheng Yu
This review examines the design of thermal control systems for state-of-the-art deep ultraviolet (DUV) and extreme ultraviolet (EUV) projection lithography tools. The lithographic system under investigation integrates several critical subsystems along the optical transmission chain, including the light source, reticle stage, projection optics (featuring DUV refractive lenses and EUV multilayer mirrors), immersion liquid, wafer stage, and metrology systems. Under high-power irradiation conditions with concurrent thermal perturbations, the degradation of thermal stability and gradient uniformity within these subsystems significantly compromises exposure precision. Through a systematic analysis of the thermal challenges specific to each subsystem, this review synthesizes established thermal control systems across two technical dimensions: thermal control structures and thermal control algorithms. Prospects for future advancements in lithographic thermal control are also discussed.

18 July 2024 in International Journal of Heat and Mass Transfer
Verified
Journal Article
Closed access
ZZZhibo Zeng
Zhibo Zeng
WZWei Zhang
Wei Zhang
DCDi Cao
Di Cao
HYHangcheng Yu
Hangcheng Yu
XLXiaoping Li
Xiaoping Li

20 November 2025 in International Journal of Thermal Sciences
Verified
Journal Article
Closed access
DCDi Cao
Di Cao
YZYiwen Zhao
Yiwen Zhao
HDHe Dong
He Dong
ZZZhibo Zeng
Zhibo Zeng
WZWei Zhang
Wei Zhang
HYHangcheng Yu
Hangcheng Yu