Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8043525 | Wet etching solution | Myung Kook Park, Ho-Seok Yang | 2011-10-25 |
| 7879736 | Composition for etching silicon oxide and method of forming a contact hole using the same | Dong Won Hwang, Kook-Joo Kim, Pil-Kwon Jun, Seung-Ki Chae, Yang-Koo Lee | 2011-02-01 |