Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890147 | Through-field implant isolated devices and method | Roger A. Haken | 1989-12-26 |
| 4864375 | Dram cell and method | Cheng-Eng D. Chen, Bor-Yen Mao | 1989-09-05 |
| 4842675 | Integrated circuit isolation process | Richard A. Chapman | 1989-06-27 |
| 4830978 | Dram cell and method | Robert Reid Doering, Ashwin H. Shah | 1989-05-16 |