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School of Electrical Engineering We thrive
to be the world’s
top IT powerhouse.
We thrive to be the world’s top IT powerhouse.

Our mission is to lead innovations
in information technology, create lasting impact,
and educate next-generation leaders of the world.

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School of Electrical Engineering We thrive
to be the world’s
top IT powerhouse.
We thrive to be the world’s top IT powerhouse.

Our mission is to lead innovations
in information technology, create lasting impact,
and educate next-generation leaders of the world.

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Learn More
AI in EE AI and machine learning
are a key thrust
in EE research
AI and machine learning are a key thrust in EE research

AI/machine learning  efforts are already   a big part of   ongoing
research in all 6 divisions - Computer, Communication, Signal,
Wave, Circuit and Device - of KAIST EE 

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Highlights

[Prof. Hyun-Sik Kim,  PhD candidate Gyuwan Lim, PhD candidate  Gyeong-Gu Kang, from left]

 

EE professor Hyun-Sik Kim’s team of Ph.D. students received the Prime Minister’s Award at the 23rd Korea Semiconductor Design Challenge.

 

The 23rd Korea Semiconductor Design Challenge is held to cultivate design skills and discover creative ideas of students within the field of semiconductor design, jointly organized by the Korean Ministry of Trade, Industry and Energy, and the Korea Semiconductor Industry Association (KSIA).

 

The winners, Gyuwan Lim and Gyeong-Gu Kang, have been selected for the achievement of high resolution and high uniformity with their mobile device Display Driver IC (DDI) design while maintaining an ultra-small chip area.

 

The DDI chip is a key component of a display system, that converts digital display data into analog signals (digital-to-analog conversion, DAC) and writes them to the display panel. The KAIST team solved the problem of uniformity and increasing chip surface that comes with higher resolution DDI chips.

 

The award-winning DDI chip design consists of a low-voltage MOSFET with a voltage amplifier instead of the conventional high-voltage MOSFET. This technology dramatically reduces the channel area, further reduced through a novel LSU technology that generates a 10-bit output voltage from an 8-bit input voltage.

 

The team was able to achieve high uniformity through designing a robust amplifier and chip operation against variations of the CMOS fabrication process. The novel DDI chip design is expected to significantly reduce cost while increasing the quality of mobile device displays through the reduced chip area, while achieving high resolution and high uniformity at the same time.

 

The results of this study were also presented at ISSCC 2022, a highly reputable international conference in the field of integrated circuits.

 

 

[Prof. Junil Choi, Dr. Preeti Kumari (Qualcomm), Prof. Nuria Prelcic (North Carolina State University), Prof. Robert Heath (North Carolina State University), from left]
 
 
KAIST EE Prof. Junil Choi won Best Vehicular Electronic Paper Award in 2022 Institute of Electrical and Electronics Engineers (IEEE) Vehicular Technology Society (VTS), becoming the first Korean to receive four best paper awards among the 39 academic journals of IEEE.
 
Prof. Junil Choi was awarded Best Paper Award in 2015 Signal Processing Society, Stephen O. Rice Prize (Best Paper Award) in 2019 Communications Society, and Neal Shepherd Memorial Best Propagation Award (Best Paper Award) in ’21 VTS.
 
Prof. Choi said “I am highly grateful to know that my research on the application of joint millimeter communication-radar systems in vehicle-to-vehicle communication has received huge international recognition, and honored to become the first Korean to win four best paper awards in IEEE society.”
 
The award ceremony is going to be held in upcoming September at 2022 Vehicular Technology Conference (VTC), the largest academic conference arranged by IEEE VTS. More details will be posted in 2022 VTC fall homepage and IEEE VTS News letter, and the list of awardees will be displayed permanently in IEEE VTS homepage.
 
 

[Prof. Myoungsoo Jung, Miryeong Kwon, Seungjun Lee, and Hyunkyu Cho from left]

 

Our department’s Professor Myoungsoo Jung’s research team has developed the world’s first Predictable Latency Mode (PLM) SSD based hardware and software co-designed framework for Log-Structured Merge Key-Value Stores (LSM KV store).

 

The research team has developed the ‘hardware and software co-designed framework for LSM KV store, Vigil-KV’ that eliminates long-tail latency by utilizing the Predictable Latency Mode (PLM) interface, which provides constant read latency, to the actual datacenter-scale SSD. Vigil-KV outpoerforms 3.19x faster tail latency and 34% faster average latency compared to the existing LSM KV store.

 

LSM KV store, a kind of database, is used to manage various application data, and it must process the user requests within the requirement time in order not to degrade the user experience. To this end, Vigil-KV enables a predictable latency mode (PLM) interface on an actual datacenter-scale NVMe SSD (PLM SSD), which guarantees constant read latency in deterministic mode related to read service without performing SSD’s internal tasks.

 

Specifically, Vigil-KV hardware makes the deterministic mode SSDs exist in the system to remove SSD’s internal tasks by configuring PLM SSD RAID. In addition, Vigil-KV software prevents the deterministic mode from being released by LSM KV store’s internal tasks, scheduling LSM KV store operations (e.x., compaction/flush operations) and client requests.

 

Among the proposed research results, especially noteworthy is that Vigil-KV is the first work that implements the PLM interface in a real SSD and makes the read latency of LSM KV store deterministic in a hardware-software co-design manner. They prototype Vigil-KV hardware on a 1.92TB datacenter-scale NVMe SSD while implementing Vigil-KV software using Linux 4.19.91 and RocksDB 6.23.0.

 

The KAIST Ph.D. Candidates (Miryeong Kwon, Seungjun Lee, and Hyunkyu Choi) participate in this research, and the paper (Vigil-KV: Hardware-Software Co-Design to Integrate Strong Latency Determinism into Log-Structured Merge Key-Value Stores) was reported in July, 11th at ‘USENIX Annual Technical Conference, ATC, 2022’. In addition, they has won the Best Paper Award from Samsung for this paper (Vigil-KV) with Professor Jae-Hyeok Choi’s research team.

 

The Best Paper Award from Samsung recognizes master’s and doctorate students that participated in research grant projects and published papers related to the project among papers adopted by foreign journals/conferences since September 21st. This year’s awards consisted of grand award (2 people), excellence award (1 person), and encouragement award (2 people).

The research was supported by Samsung. More information on this paper can be found at http://camelab.org.

 

 

 

 

 

 

 

[ EE P.H.D candidate Dong-gyun Lee, Prof. Seung-hyeop Yoo, from left]
 
 
At the 2022 Advanced Photonics Congress held in July of this year, PhD candidate Dong-gyun Lee of Electrical Engineering department was awarded the Congress Student Paper Prize.
 
This conference is a global conference where leading researchers from around the world gather and share research on optical materials, optical signal processing, optical communications, and integrated optics. 
 
Based on rigorous mechano-optical analysis and using ultra-thin PI and elastomer arrays, Lee proposed a new method to increase the area ratio, which has been a bottleneck in stretchable organic light-emitting diode platforms.
 
For this contribution, he won the 2022 Advanced Photonics Congress Student Paper Prize by The Optical Devices and Materials for Solar Energy and Solid-state Lighting (PVLED) committee chair.

[Prof. Kayoung Lee]

 

KAIST EE Professor Kayoung Lee is selected for the Young Scholar Award at the 9th Korean Symposium on Graphene and 2D Materials, hold by the Korean Graphene Society. 

 

The Young Scholar Award is awarded to those who have made a great contribution to the Korean graphene and 2D materials field, among academics under the age of 40. 

 

Professor Kayoung Lee, as this year’s awardee, received the award with a prize of 1 million wons.

 

[Award ceremony picture, Society Chair, Prof. Jong-Hyun Anh, Prof. Kayoung Lee, from left ]

KAIST EE Research team, are awarded both UDC Innovative Research Award in Organic Electronics & Display and UDC Pioneering Technology Award in Organic Electronics.
 
[Prof. Kyung Cheol Choi, Prof. Seunghyup Yoo, Yongjin Park, Dr. Hyung Suk Kim, from left]
 
 
KAIST EE Ph.D. candidate Yongjin Park (advised by Prof. Kyung Cheol Choi) and Dr. Hyung Suk Kim (KAIST EE graduate, advised by Prof. Seunghyup Yoo) respectively won UDC Innovative Research Award in Organic Electronics & Display and UDC Pioneering Technology Award in Organic Electronics at International Meeting on Information Display (IMID 2022) hold in Pusan last week.
It is unusually remarkable for students from the same department to receive both of the prestigious awards, each of which include a monetary reward of 15 million KRW.
 
[Photo of the award ceremony: Youngjin Park, Dr. Julie Brown (UDC senior vice president and chief technology officer), Dr. Hyung Suk Kim, from left]
 
Relevant news link:
 

[Prof. Jae-Woong Jeong, Simok Lee, From Left ]

 

Ph.D. student Simok Lee (Advised by Jae-Woong Jeong) won the Best Paper Award at the 2022 Korean Sensors Society Autumn Conference.

The Korean Sensors Society Conference is a conference held every spring and fall, and this year, and this autumn conference was held in Yeosu from August 24th to 26th.

Ph.D. student Simok Lee has published a paper titled “Adaptive Electronic Skin with High Sensitivity and Large Bandwidth Based on Gallium Microdrop-Elastomer Composite”.

Details are follows. Congratulations once again to Ph.D. student Simok Lee and Professor Jae-Woong Jeong!

 

Conference: 2022 Korean Sensors Society Autumn Conference

 

Date: August 24-26, 2022

 

Award: Best Presentation Paper Award

 

Authors: Simok Lee, Sang-Hyuk Byun, Jae-Woong Jeong (Advisory Professor)

 

Paper Title: Adaptive Electronic Skin with High Sensitivity and Large Bandwidth based on Gallium Microdroplet-Elastomer Composite

 

 

In the 2022 Fall Semester, KAIST EE Colloquium Lecture Series will be opened.

Classes will be offered online until further notice.

We look forward to seeing many of you at the talk.

 

-Date: Thursday, 4PM (9.15 ~ 12.08)

-Location: Zoom (scan the QR code on the flyer )

* <Colloquium> requires students to attend at least 6 seminars out of total 12 seminars.

 

SCHEDULE

SEMINAR

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