• Journal of IKEEE
• /
• v.22 no.4
• /
• pp.1234-1237
• /
• 2018

For 4H-SiC trench MOSFET which can reduce on-resistance and switching losses compared to 4H-SiC planar MOSFET, the optimization study for decrease of sub-trench was carried out. In order to decrease sub-trench, Ar reshape process was used and trench shapes were observed as a function of temperature and process time. As a result, it was confirmed that the process conditions for $1500^{\circ}C$ and 20 min were most effective for the suitable trench profiles. In addition, dry/wet oxidation was performed at the Ar reshaped-samples to observe the oxidation thickness with different crystal orientations.

• International Journal of Advanced Culture Technology
• /
• v.9 no.3
• /
• pp.277-282
• /
• 2021

The generalization of social distancing due to the COVID-19 pandemic has rapidly spread non-face-to-face services, accelerating the speed of non-face-to-face digital conversion technology. The importance of telemedicine, a remote service, has been rekindled in the wearable technology including the medical industry. In a situation where it is not easy for any company to overcome the COVID-19 pandemic, it is a time when collaboration within the industry or between competitors is necessary. In addition to the digital-based online exhibition hall using AR-VR-MR technology, which is a major core technology of the future industry, virtual stores that can receive services such as actual shopping should be actively used. Paradoxically COVID-19 will provide new opportunities to reshape and reconnect the future of the textile and fashion industry. Therefore, the purpose of this study is to investigate the current status of wearable technology products being developed as fashion items for the prevention of COVID-19 and analyze their characteristics. This study results can be used as basic data for future research on the fashion industry and education.