Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8012881 | Method for forming contact holes in semiconductor device | Sang-Oh Lee, Sung-Kwon Lee, Jong-Sik Bang | 2011-09-06 |
| 7919414 | Method for forming fine patterns in semiconductor device | Won-Kyu Kim | 2011-04-05 |