Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6480018 | Charge gain stress test circuit for nonvolatile memory and test method using the same | — | 2002-11-12 |
| 6335553 | Nonvolatile semiconductor memory and method of fabrication | — | 2002-01-01 |
| 6335243 | Method of fabricating nonvolatile memory device | Woong Choi | 2002-01-01 |
| 6323671 | Charge gain stress test circuit for nonvolatile memory and test method using the same | — | 2001-11-27 |
| 6278634 | Reference memory cell initialization circuit and method | — | 2001-08-21 |
| 6269022 | Threshold voltage setting circuit for reference memory cell and method for setting threshold voltage using the same | — | 2001-07-31 |
| 6146943 | Method for fabricating nonvolatile memory device | Woong Choi | 2000-11-14 |
| 6121072 | Method of fabricating nonvolatile memory device | Woong Choi | 2000-09-19 |
| 6087223 | Method of fabricating flash memory with dissymmetrical floating gate | — | 2000-07-11 |
| 6038175 | Erase verifying apparatus in serial flash memory having redundancy and method thereof | — | 2000-03-14 |
| 6037226 | Method of making contactless nonvolatile semiconductor memory with asymmetrical floating gate | — | 2000-03-14 |
| 5998829 | Non-volatile memory device incorporating a dual channel structure | Woong Choi | 1999-12-07 |
| 5859454 | Nonvolatile memory device | Woong Choi | 1999-01-12 |
| 5777359 | Semiconductor flash memory device and fabrication method of same | — | 1998-07-07 |
| 5751632 | Device for and method of sensing data of multi-bit memory cell | Woong Choi, Kyung Myung Hur | 1998-05-12 |