News

2025. 12. Two undergraduate students, Eun Woo Seo and Uhyeock Jin, joined our research group. Welcome to the team!

2025. 11. Our group recently visited the 3D and 9C beamlines at the Pohang Accelerator Laboratory to perform time-resolved in situ XRD experiments. These in situ XRD measurements were carried out to monitor real-time structural evolution in ferroelectric thin films during thermal treatment and under applied electric fields, with particular attention to changes in the corresponding diffraction patterns.

2025. 11. Our group has recently introduced a thermal atomic layer deposition (ALD) system (PLATINA 100, ALPES). The thermal ALD system enables precise and uniform thin-film deposition through self-limiting surface reactions. In particular, it is equipped with an integrated quartz crystal microbalance for in-situ monitoring of film growth per cycle, allowing real-time process analysis and optimization. This system is widely used for the deposition of high-quality oxide films in semiconductor and materials research.

2025. 10. Our group has recently introduced a mask aligner (MDA-400M, MIDAS SYSTEM). The MDA-400M is a high-precision mask aligner that enables photolithography processes for micro- and nano-fabrication. It supports both contact and proximity exposure modes, providing excellent alignment accuracy and uniformity. This system is widely used in the fabrication of semiconductor devices, MEMS, and various micro-patterned structures.

2025. 09. Our group celebrated the start of the semester with a dinner and hangout!

2025. 06. Dr. Lee visited 9C beamline at Pohang Accelerator Laboratory to conduct time-resolved in situ X-ray diffraction experiments. The in situ XRD experiment was conducted to observe structural changes occurring during polarization switching in ferroelectric and antiferroelectric-based thin films by simultaneously applying an electric field and X-rays while monitoring changes in the measured diffraction pattern.

2025. 03. Undergraduate student, Chan Wool Park, joined our research group. Welcome to the team!

2025. 02. Our group has recently introduced a precision LCR meter (Keysight E4980A). The Keysight E4980A is a precision LCR meter that can measure impedance and dielectric properties in a frequency range from 20 Hz to 2 MHz with high precision. It is widely used in fields such as semiconductors, electronic components, and material research. 

2025. 02. Our group has recently set up a probe station capable of measuring the electrical properties of semiconductor devices in a cryogenic environment (VPX-77KD, PRIME TECH). This system enables precise low-temperature measurements down to ~77 K under high vacuum conditions (e.g.,10-6 - 10-8 Torr), supporting advanced research in semiconductor and nanomaterial studies. 

2025. 02. Our group has recently introduced a new semiconductor parameter analyzer (Keithley 4200A-SCS, TEKTRONIXS). The Keithley 4200A is a high-performance parameter analyzer designed for electrical characterization of semiconductor devices and materials. It supports various electrical tests, including IV and CV measurements, and is widely used for semiconductor device characterization, nanomaterial research, and reliability evaluation. 

2025. 02. Our group attended the Korean Conference on Semiconductor 2025!

2024. 12. Our group has recently introduced a new Rapid Thermal Processing (RTP) system (Real RTP 100, ULTECH). RTP is a technique that allows wafers to be heated to high temperatures (e.g., 1000 °C) for very short durations. It is widely used in semiconductor processing for oxidation, annealing, and diffusion. With this system, we can perform thermal treatments under various conditions, and we are excited about the possibilities it offers!

2024. 10. Dr. Lee gave an invited talk at 2024 Fall Meetings of Korean Ceramic Society in Seoul.

2024. 08. Dr. Jones at North Carolina State University, former Ph.D. advisor of Dr. Lee, visited our university. Thanks for visiting, Jacob!

2024. 07. Two undergraduate students, Seong Min Kong and Ho Won Nam, joined our research group. Welcome to the team!

2024. 06. Dr. Lee gave an invited talk at Global Conference on Innovation Materials 2024 in Jeju island.

2024. 03. Dr. Lee visited 3C and 9C beamline at Pohang Accelerator Laboratory to conduct grazing incidence wide angle X-ray scattering and time-resolved in situ X-ray diffraction experiments, respectively.