Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859619 | EPROM fabrication process forming tub regions for high voltage devices | Geeng-Chuan Chern, James Hu | 1989-08-22 |
| 4822750 | MOS floating gate memory cell containing tunneling diffusion region in contact with drain and extending under edges of field oxide | Gust Perlegos | 1989-04-18 |