Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7311857 | Etching composition, method of preparing the same, method of etching an oxide film, and method of manufacturing a semiconductor device | Yong-Kyun Ko, Sang-Mun Chon, Pil-Kwon Jun, Sang Mi Lee, Kwang-Shin Lim +1 more | 2007-12-25 |
| 7183192 | Composition for removing photoresist and method of forming a bump electrode in a semiconductor device using the composition | Dong-Jin Park, Sang-Mun Chon, Pil-Kwon Jun | 2007-02-27 |