Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11107681 | Method of fabricating semiconductor device by removing material on back side of substrate | Ji Youn Seo, Ji Woon Im, Dai Hong Kim, Ik Soo Kim | 2021-08-31 |
| 11063060 | Methods of manufacturing a vertical memory device | Il-Woo Kim, Byoung-Deog Choi, Ik Soo Kim, Min-Jae Oh | 2021-07-13 |