Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12146092 | Etching composition, method for etching insulating film of semiconductor devices using the same and method for preparing semiconductor devices | Cheol Woo Kim, Kwang Kuk Lee, Jae Hoon Kwak, Young Bom Kim, Jong Ho Lee +1 more | 2024-11-19 |
| 11186772 | Etching composition, method for etching insulating film of semiconductor devices using the same and method for preparing semiconductor devices | Cheol Woo Kim, Kwang Kuk Lee, Jae Hoon Kwak, Young Bom Kim, Jong Ho Lee +1 more | 2021-11-30 |