- Market Dynamics and Volatility
- Monetary Policy and Economic Impact
- Advancements in Semiconductor Devices and Circuit Design
- Nanofabrication and Lithography Techniques
- Advancements in Photolithography Techniques
- Semiconductor materials and devices
- Complex Systems and Time Series Analysis
- Integrated Circuits and Semiconductor Failure Analysis
- Economic Growth and Productivity
- COVID-19 Pandemic Impacts
- Financial Risk and Volatility Modeling
- Advanced Surface Polishing Techniques
Soongsil University
2025
SK Group (South Korea)
2018-2023
This study investigated market efficiency across 20 major commodity assets, including crude oil, utilizing fractal analysis. Additionally, a rolling window approach was employed to capture the time-varying nature of in these markets. A Granger causality test applied assess influence oil on other commodities. Key findings revealed significant inefficiencies RBOB(Reformulated Blendstock for Oxygenated Blending) Gasoline, Palladium, and Brent Crude Oil, largely driven by geopolitical risks that...
We developed a nanoimprint lithography (NIL) technology including NIL system, template and resist process for half pitch (hp) 14 nm direct pattering. The latest system NZ2C shows the mix match overlay (MMO) of 3.4 ( 3σ) life around 125 lots. Throughput 80 wafers per hour (wph) was demonstrated using throughput enhancement solutions, such as gas permeable spin-on-carbon (GP-SOC) multi field dispense (MFD). hp fabricated by self-aligned double patterning (SADP) on template. Using this...
This study utilizes the hedging potential of U.S. Dollar Index (USDX) during COVID-19 period, specifically comparing its positive effects on optimal portfolio weights and ratios with those traditional assets, such as VIX gold. The scalar BEKK GARCH model is employed to forecast volatility calculate indicators. results show that USDX exhibits strong abilities against S&P 500 index volatility. These findings highlight advantageous role a instrument, particularly periods heightened market...
We report on progress toward scaling both N-metal–oxide–semiconductor (MOS) and P-metal–oxide–semiconductor MOS transistors to a gate length of 30 nm. describe lithography pattern transfer results that are suitable meet this goal. Scanning capacitance microscopy is used determine the effective channel lengths source drain junction depths cross-sectioned devices optimize fabrication process. present interim electrical obtained for high performance, down Lg=57 nm, N-MOS P-MOS made using have...
In this study, the impact of currency options(volatility) and KTB futures prices on USD/KRW exchange rate was divided into before after COVID-19 a comparative analysis conducted using cross-sectional regression VECM. The results are as follows. First, looking at analysis, option market showed that only one-year volatility affected in all periods. However, both 3-year 10-year had no significant COVID-19, but appeared to have statistically starting COVID-19. Second, cointegration exists time...