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X-ORIGINAL-URL:https://ece.hku.hk
X-WR-CALDESC:Events for Department of Electrical and Computer Engineering (HKUECE) 電機與計算機工程系
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TZID:Asia/Hong_Kong
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DTSTART:20220101T000000
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20231130
DTEND;VALUE=DATE:20231201
DTSTAMP:20260513T073658
CREATED:20231121T064345Z
LAST-MODIFIED:20250114T080601Z
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SUMMARY:RPG Seminar – Gate anti-screening Effect in InGaZnO Thin‑Film Transistor with High‑κ Gate Dielectric
DESCRIPTION:Gate screening effect has been demonstrated to play a significant role in enhancing the carrier mobility of MOS-based thin-film transistors (TFTs) with high-k gate dielectrics. Typically\, higher gate carrier concentration results in stronger gate screening effect\, leading to increased carrier mobility in the channel layer. However\, recent research has revealed a significant reduction in the channel-carrier mobility of TFT with high-k gate dielectric for specific carrier concentrations in silicon gate. This reduction is believed to be attributed to the resonance between gate-electrode plasmon and gate-dielectric phonon when their frequencies are close/equal\, resulting in the so-called gate anti-screening effect. \nThis seminar aims to provide a comprehensive understanding of the anti-screening effect observed in Indium Gallium Zinc Oxide (IGZO) TFTs employing both single-layered (NdHfO) and double-layered (NdHfO/SiO2) gate dielectrics. The investigation will delve into the underlying physical mechanisms and explore the impact of this phenomenon on the performances of TFT devices. \nZoom Link :\nhttps://hku.zoom.us/j/96298505535 \nMeeting ID: 962 9850 5535\n\nBiography of the speaker:\n\nSun Hao completed his bachelor’s degree from Hunan University\, specializing in electronic and information engineering\, and then obtained his master’s degree from National Space Science Center (NSSC)\, the Chinese Academy of Sciences\, majoring in electronic and communication engineering. Currently\, Sun Hao is a Ph.D. student in the Department of Electrical and Electronic Engineering at the University of Hong Kong\, under the supervision of Prof. P. T. Lai. Mr. Sun’s primary research interest lies in the investigation and modelling of gate screening effect in MOS-based TFTs. \nAll are welcome.
URL:https://ece.hku.hk/events/rpg-seminar-gate-anti-screening-effect-in-ingazno-thin%e2%80%91film-transistor-with-high%e2%80%91%ce%ba-gate-dielectric/
CATEGORIES:Seminar
ATTACH;FMTTYPE=image/jpeg:https://ece.hku.hk/wp-content/uploads/2024/02/Seminar-s-banner.jpg
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20231130
DTEND;VALUE=DATE:20231201
DTSTAMP:20260513T073658
CREATED:20231123T084723Z
LAST-MODIFIED:20250114T080044Z
UID:17862-1701302400-1701388799@ece.hku.hk
SUMMARY:William Mong Distinguished Lecture: Communication Networks: From Stochastic Models\, to Optimization to Machine Learning
DESCRIPTION:This lecture will briefly overview use of queueing and optimization models to engineer circuit (telephone) and packet-switching networks. It will highlight use of distributed optimization theory\, based on which the well-known Transport Control Protocol (TCP) is shown to allocate communication bandwidth in a distributed and optimal way on the Internet. As for wireless networks\, channel interference and quality of multimedia services complicate resource allocation\, which require new distributed solutions. \nThe speaker will also discuss the relationships between optimization and machine learning (ML). As ML aims to determine the optimal parameters of neural-network models by using the available datasets\, it can also be used to solve general optimization problems.  Ongoing research on applying ML to control future communication networks will be discussed. \nBiography of the speaker: \nKin K. Leung is the Tanaka Chair Professor at Imperial College in London. He received his B.S. from the Chinese University of Hong Kong\, and M.S. and Ph.D. from University of California\, Los Angeles. Before joining Imperial\, he worked at AT&T Bell Labs in New Jersey from 1986 to 2004. He is a Fellow of the Royal Academy of Engineering\, IEEE Fellow\, IET Fellow\, and member of Academia Europaea. His contributions to communication network technologies have led to significant design improvements and new capabilities of nationwide telecommunication systems\, wireless networks\, and defense communication networks\, both in the U.S. and the UK. He has won many professional awards\, including the Bell Labs DMTS Award\, Royal Society Wolfson Research Merit Award\, IEEE Communications Society (ComSoc) Leonard G. Abraham Prize\, IEEE ComSoc Best Survey Paper Award\, and U.S.–UK Science and Technology Stocktake Award. \nAll are welcome. \nRegister Now : https://shorturl.at/gqAS9
URL:https://ece.hku.hk/events/communication-networks-from-stochastic-models-to-optimization-to-machine-learning/
CATEGORIES:Seminar
ATTACH;FMTTYPE=image/jpeg:https://ece.hku.hk/wp-content/uploads/2024/02/Seminar-s-banner.jpg
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