Issued Patents 2005
Showing 1–3 of 3 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, Kun-Tack Lee | 2005-06-07 |
| 6887137 | Chemical mechanical polishing slurry and chemical mechanical polishing method using the same | Jae-Dong Lee, Bo-Un Yoon | 2005-05-03 |
| 6860277 | Single type of semiconductor wafer cleaning device | Kun-Tack Lee, Sang-rok Hah | 2005-03-01 |