Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7989123 | Photomask including ion trapping layer and method of manufacturing semiconductor device using the photomask | Han-shin Lee, Jae-Hyuck Choi, Hyung-Ho Ko, Jin-sik Jung, Jong-Keun Oh +1 more | 2011-08-02 |