Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700626 | Method for forming multi-layer resist pattern | Jun Seok Lee, Hun Hur | 1997-12-23 |
| 5604138 | Process for making a semiconductor MOS transistor | Chang Jae Lee | 1997-02-18 |
| 5591550 | Phase shift mask and method for forming phase shift mask | Yong Kyoo Choi | 1997-01-07 |