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Professor Seong-Ihl Woo Develops New High-Speed Research Method
Professor Seong-Ihl Woo Develops New High-Speed Research Method
Reduce research periods and expenses for thin film materials several ten times
Posted on the online version of Proceedings of National Academy of Sciences of the United States of America (PNAS) on January 9
A team led by Seong-Ihl Woo, a professor of KAIST Department of Chemical & Biomolecular Engineering and the director of the Center for Ultramicrochemical Process Systems, has developed a high-speed research method that can maximize research performances and posted the relevant contents on the online version of Proceedings of National Academy of Sciences of the United States of America (PNAS), a distinguished scientific journal, on January 9, 2007.
Professor Woo’s team has developed a high-speed research method that can fabricate several tens or several thousands of thin films with different compositions (mixing ratio) at the same time and carry out structural analysis and performance evaluation more than ten times faster and accurately, which leads to the shortening of the research processes of thin film materials. This is an epoch-making method that can reduce research periods and expenses several ten times or more, compared to the previous methods.
The qualities of final products of electronic materials, displays, and semi-conductors depend on the features of thin film materials. Averagely, it takes about two weeks or longer to fabricate a functional thin film and analyze and evaluate its performances. In order to fabricate thin film materials in need successfully, more than several thousand times of tests are required.
The existing thin film-fabricating equipment is expensive one demanding high-degree vacuum, such as chemical vapor deposition, sputtering, physical vapor deposition, laser evaporation, and so on. In order to fabricate thin films of various compositions with this equipment, a several million won-worth target (solid-state raw material) and precursors (volatile organic metal compound) pricing several hundreds won per gram are required. Therefore, huge amount of experiment expense is demanded for fabrication of several ten thousands of thin films with various compositions.
Professor Woo’s team has developed ‘combinatorial droplet chemical deposition’ equipment, which does not demand high-degree vacuum and is automated by computers and robots, by using a new high-speed research measure. The equipment is priced at about 1/5 of the existing equipment and easy for maintenance.
This equipment uses cheap reagents, instead of expensive raw materials. Reagents necessary to form required compositions are dissolved in water or proper solvents, and then applied by high frequencies to make several micrometer-scaled droplets (fine liquid droplet). Theses droplets are moved by nitrogen and dropped onto a substrate, which is to be fabricated into a thin film, and then subsequent thermal treatment is applied to the substrate to fabricate a thin film of required composition. At this moment, several tens or several hundreds of thin films with various compositions can be fabricated at the same time by reducing the size of thin film specimens into millimeter scale with the use of shade mask and adjusting vaporization time with masks, the moving speed of which can be adjusted. The expenses for materials necessary for the fabrication of thin films with this equipment amount to several ten thousands won per 100 grams, which is in the range of 1/100 and 1/10 of the previous methods, and the research period can be shortened into one of several tenth.
“If this new method is applied to the development of elements in the fields of core energy, material and health, which have not been discovered by the existing research methods so far, as well as researches in thin film material field, substantial effects will be brought,” said Professor Woo.
‘Combinatorial droplet chemical vaporization’ equipment is pending a domestic patent application and international patent applications at Japan and Germany. This equipment will be produced by order and provided to general researchers.
2007.02.02 View 15696 -
Information on Notification of Student Numbers and Input of Personnel Information for Successful Candidates of the 2nd round of Undergraduate Student Collection
Information on Notification of Student Numbers and Input of Personnel Information for Successful Candidates of the 2nd round of Undergraduate Student Collection 2007
Successful candidates are asked to input their own personnel information by February 4 (Sun), 2007.
(Information can be input on holidays)
▶▶▶ Click here to see student numbers
▶▶▶ Click here to input personnel information
2007.01.26 View 10634
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List of successful candidates of the documentary examination for the second round of student collection for undergraduate courses 2007
List of successful candidates of the documentary examination for the second round of student collection for undergraduate courses 2007
List of successful candidates
※ Matters to be attended to
- Interviewees are asked to be with basic interview data (attached file), admission ticket for examination, and writing instruments.
- Please, admit basic interview data to interviewers directly at interview.
- Please, use the data attached to this information as basic interview data.
- Interviewees are asked to come to Classroom No. 304 of Creative Learning Building (E11).
2007.01.15 View 10152
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Final competition of 'UFC' contest
Final competition of ‘UFC’ contest
Joint university team D-M2 won first prize
The final winner of ‘the 2nd Ubiquitous Fashionable Computer (UFC) contest‘, co-hosted by KAIST and the Korean Society for Next-Generation Computing (KSNGC), was determined.
At the final competition of November 17 among 9 qualified teams, the first prize went to D-M2, composed of students from Seokyeong University, Kookmin University, Hongik University, and Sungshin Women’s University. D-M2 manufactured a work utilizing a user’s motion information by applying motion capture technologies to UFC. Particularly, the work gained a high score at the item of the functional perfection by controlling the robot according to a user’s motion.
The gold prize went to the smart jacket by Jjik-eo-cha-ki (Kwangwoon University and Duksung Women’s University). The smart jacket is embedded with an intelligent clothes function in terms of checking a user’s status in a real-time basis and delivering it to a doctor, etc.
The silver and bronze prizes went to Samsung Software Membership (SSM) and Hanse University, respectively. SSM manufactured a training suit with sensors for grasping the movement of each articulation of a user built-in, and Hanse University developed a system enabling blinders to get a voice service of general documents or books regardless of time and place.
The participants composed of university students or graduate students have passed the severe qualifying contest through the examination of written plan and presentation of last April and manufactured creative works that realize the fusion of IT technologies and fashion.
At the contest, that fact that all winners of the first, gold, and silver prizes were the members of SSM gained more attention.
UFC is a new field that pursuits the enhancement of computer technologies and the creation of fashion simultaneously by fusing IT technologies and fashions. UFC is a one-step advanced field of the existing wearable computer and an important cutting-edge field that leads a computer industry in the era of ubiquitous.
“The level of the works exhibited was higher than I’d expected and the cooperation between the departments of Closing Textile and Electronics appeared to be so positive, which made me expect more brilliant future of the next-generation computing industry,” said Hoijoon You, Co-chairman of the contest and professor of the department of Electrical Engineering.
2006.11.27 View 15298
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Professor Ikho Song Wins Academic Award of Haedong Information & Communication
Professor Ikho Song Wins Academic Award of Haedong Information & Communication
Professor Ikho Song (Division of Electrical Engineering) won an academic award of Haedong Information & Communication at a regular meeting of Korean Institute of Communication Sciences 2006. The award was given to Professor Song in recognition of his presenting excellent papers at many renowned domestic and global academic journals and his substantial contribution to the development of the information & communication field.
Meanwhile, Hyungmoon Kwon, a doctorate student under Professor Song’s supervisory, also won an award of excellent paper at the meeting.
2006.11.27 View 11993
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KAIST tech-clinic center opens
- Consists of total 124 staffs including KAIST professors, experts from state-run institutes in Daedeok Innopolis, etc.
- Introduce the patient treatment system of general hospitals and provide the services of diagnosis, treatment, and later management of small and medium-sized venture enterprises
A tech-clinic center is opened in KAIST to solve technical problems of enterprises in Daedeok Innopolis.
KAIST (President Nam Pyo Suh) and Daedeok Innopolis (President&CEO In Chul Park) held the opening ceremony of ‘Daedeok Innopolis-designated KAIST tech-clinic center’ at the High-tech Venture Hall in KAIST, 5:00 p.m. Monday, August 28.
KAIST tech-clinic center consists of total 124 staffs including KAIST professors and researchers, experts from state-run institutes in Daedeok Innopolis, etc.
The staffs will take charge of general diagnosis and treatment in the fields of Information Communication, BioTechnologies, Nano-Technologies, Environmental Engineering, Management, Design, and so on.
The tech-clinic center, upon the request by small and medium-sized enterprises, will dispatch the staffs in the corresponding field to check the state of the enterprises and provide assistance to solve problems in technology development and researches.
The center plans to transfer technologies that enterprises need and solve long-term tasks through joint/ entrusted researches.
The center will also perform treatments in the fields of management, law, and accounting of enterprises in association with company founding and management consultation project, which is being promoted by Daedeok Innopolis.
Unlike the existing consulting institutes that put a high value on consultation, the center is featured with its distinguished way of running that it will analyze the causes of problems, find fundamental solutions, and perform even later management.
An official from KAIST said, “Considering various circumstances, it’s not easy for individual enterprises to find suitable experts in the corresponding fields and request proper solutions to settle their problems. That’s the reason why KAIST has promoted this project. KAIST hopes many enterprises in Daedeok Innopolis based on the cutting-edge technologies will gain substantial assistance from this center.”
An official from Daedeok Innopolis said, “In order to provide practical supports, the treatment will be carried out in preliminary/ routine/ expert phases. Also, it is planned to strengthen regular omnidirectional support services for enterprises in association with the internet web call center, etc.”
2006.09.05 View 14218
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Professor Kim Donates W5 Bil. to KAIST
Korea Times 2004.5.21
By Kim Tae-gyu / Staff Reporter
A professor from the Korea Advanced Institute of Science and Technology (KAIST) has donated his inherited wealth of 5 billion won to the state-owned institute.
The KAIST announced professor Kim Dong-won contributed 5 billion won in properties and cash, which he inherited from his father, who passed away late last year.
``Professor Kim has asked us to spend the contribution in the development of Korea’s science in accordance with the late Kim’s will,’’ said Park Jae-wook, a KAIST spokesman.
Park added Kim had tried to remain anonymous, but his identity was revealed by some local newspapers. Kim is currently in the United States as he is out of his post on an interim basis and will come back to Korea in August.
Four billion won of the donation will be used to set up scholarships, which will endow 20 million won each to 10 KAIST students every year. The remaining 1 billion won will help invite illustrious scholars to the institute.
Adding to the good news for KAIST, Lee Chong-moon, chairman of the U.S.-based venture company Ambex, has also donated 2 billion won.
The 76-year-old Lee called for the KAIST to inspire a sprit among students by establishing a management center named after him.
2004.05.21 View 15862
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Professor Yang Receives Academic Award
By Ki-beom Lee / Reporter
The KAIST Herald December 3, 2003
The Professor Dong-yol Yang of the Department of Mechanical Engineering received the Sang-woo Academic Award last month. Unlike other awards of similar nature, this award is given to one of many leading scientists who has written six to seven papers in the previous year. This award is special in that Professor Yang retired as chairman of the Korean Society for Technology of Plasticity in December 2002. Professor Yang received a prize on the research of the anisotropic pressing out process. He has also written papers based on the twenty-five years of research at Korea Advanced Institute of Science and Technology and has researched high-speed modeling for the first time in Korea.
2004.03.15 View 15783