Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6903024 | Method of manufacturing storage nodes of a semiconductor memory device using a two-step etching process | Sang-Yong Kim, Yong-Pil Han | 2005-06-07 |
| 6860277 | Single type of semiconductor wafer cleaning device | Yong-Pil Han, Sang-rok Hah | 2005-03-01 |