Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6476440 | Nonvolatile memory device and method of manufacturing the same | — | 2002-11-05 |
| 6313009 | Fabrication method of semiconductor memory device with impurity regions surrounding recess | — | 2001-11-06 |
| 6157069 | Highly integrated mask ROM for coding data | Ki Jik Lee | 2000-12-05 |
| 6022779 | Method of forming mask ROM | Ki Jik Lee | 2000-02-08 |
| 5990529 | Semiconductor memory device with impurity areas around trench structure | — | 1999-11-23 |
| 5926415 | Semiconductor memory having NAND cell array and method of making thereof | — | 1999-07-20 |