Cheol Seong Hwang

• SNU Distinguished Professor
• Dielectric Thin Film Laboratory
• Department of Materials Science and Engineering, Seoul National University

Gwanak-ro 1, Daehag-dong, Gwanak-gu, Seoul, 08826, Korea.

Office 33-111

Tel. +82-2-880-7535

Fax. +82-2-884-1413

cheolsh@snu.ac.kr

Education

Career

• 09/20 - Present: SNU Distinguished Professor, Seoul National University
• 01/19 - Present: Member of National Academy of Engineering of Korea(NAEK)
• 08/18 - Present: Editorial Board Member, Physica Status Solidi(RRL), Wiley-VCH, Germany
• 01/15 - Present: Regular member of Korean Academy of Science and Technology (KAST)
• 01/15 - Present: International Advisory Board Member, Advanced Electronic Materials, Wiley-VCH, Germany
• 11/14 - Present: Fellow, Royal Society of Chemistry, UK
• 02/14 - Present: International Advisory Board Member, Journal of Materials Chemistry C, Royal Society of Chemistry, UK
• 01/14 - 01/16: Director, Inter-university Semiconductor Research Center, Seoul National University
• 06/12 - Present: Editorial Board Member, Scientific Reports, Nature Publishing Group
• 03/08 - 08/20: Professor, Department of Materials Science and Engineering, Seoul National University
• 04/02 - 02/08: Associate professor, Department of Materials Science and Engineering, Seoul National University
• 01/98 - 03/02: Assistant professor, Department of Materials Science and Engineering, Seoul National University
• 05/94 - 12/97: Principal Engineer, Process development team, Semiconductor R&D center, Samsung Electronics,
• 02/93 - 05/94: Post-doctoral Research Fellow Position in Ceramics Division of Material Science and Engineering Lab., National Institute of Standards and Technology, MD USA
• 03/90 - 02/91: Research assistant, Department of inorganic materials Science and Engineering, Seoul National University

Awards

• 2002. 11: Humbolt research fellowship award with the highest grade from Alexander von Humboldt Foundation, Germany
• 2002. 11: Excellent young professor award from president of Seoul National University, Korea
• 2004. 02: The 7th Presidential Young Scientist Award from Korean Government.
• 2008. 10: Doh-Yeon Creativity Award, Inter-university Semiconductor Research Center, Seoul National University, Korea
• 2011. 07: AP Faculty Excellence Award, Air Products, USA
• 2013. 10: Award of Industrial Technology, Korea Evaluation Institute of Industrial Technology, Korea
• 2015. 10: The 7th Knowledge and Creativity Award, Ministry of Science, ICT and Future Planning, Korea
• 2016. 04: Presidential Citation for the Man of Merits in promoting Science and Technology, Ministry of the Interior, Korea
• 2018. 02; Daewon Kahng Award from Korean Conference on Semiconductor
• 2018. 09: The 32nd Inchon Award from Inchon Memorial, Korea
• 2020. 09: 16th Kyung-Ahm Award - Engineering from Kyung-Ahm education and culture Foundation, Korea

Research Interests

• 1. Thin films technology for next-generation nonvolatile memory applications

  Ferroelectric memory materials: Research of Pb(Zr,Ti)O₃, BiFeO₃, (Hf,Zr)O₂ thin films.

  Resistive memory materials: Research of transition metal oxide TiO₂, NiO,TaO_x, HfO₂ thin films.

  Phase change memory materials: Research of phase change material (GeSbTe) thin films.

  Charge trap flash memory materials: Research of ZnSnO_x, and InGaZnO_x thin films and application to 3D structure.

• 2. Thin films technology for DRAM and Logic device applications

  High-k materials: Research of TiO₂, SrTiO₃, (Ba, Sr)TiO₃, Al-doped TiO₂, TiO₂/HfO₂ stack, ZrO₂, HfO₂, and Hf silicate thin films.

  Metal electrodes materials: Research of RuO₂, Ru, SrRuO₃, Hf, and Ti, TiN, and La thin films.

  High mobility channel materials: Characterizations of high-k materials on Ge or III-V compound semiconductor

• 3. Research for Neuromorphic system

  Resistance-based nonvolatile random access memory (RAM) array

    : Resistive-switching RAM (ReRAM), Phase-change RAM (PcRAM), Ferroelectric Tunnel Junction (FTJ)

  Ferroelectric Field-Effect Transistor (FeFET)

  Hardware-based neural network: Reservoir computing

  Stochastic computing: TRNG, p-bit

  Stateful logic