Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4808555 | Multiple step formation of conductive material layers | Richard W. Mauntel, Stephen J. Cosentino, Louis C. Parrillo | 1989-02-28 |
| 4801555 | Double-implant process for forming graded source/drain regions | Louis C. Parrillo, Frank K. Baker, Jr. | 1989-01-31 |