Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8043974 | Semiconductor wet etchant and method of forming interconnection structure using the same | Jung-Dae Park, Young-Sub You, Tae-Hyo Choi, Kun-Hyung Lee | 2011-10-25 |
| 7959884 | Apparatus for purifying air and purifying method thereof | Seung-Ki Cha, Chang-Su Lim | 2011-06-14 |
| 7943562 | Semiconductor substrate cleaning methods, and methods of manufacture using same | Da-Hee Lee, Jung-Dae Park, Tae-Hyo Choi | 2011-05-17 |
| 7880138 | Apparatus and method for analyzing contaminants on wafer | Jae Seok Lee, Heung Bin Lim, Won Ryu, Seung-Ki Chae, Yang-Koo Lee | 2011-02-01 |