Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871689 | Multilayer trench isolation process and structure | Bridgette A. Bergami | 1989-10-03 |
| 4855804 | Multilayer trench isolation process and structure | Bridgette A. Bergami | 1989-08-08 |