Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871962 | Method for measuring the size of vias | — | 1989-10-03 |
| 4796081 | Low resistance metal contact for silicon devices | Bernard W. K. Ho, Hsiang-Wen Chen, Hugo W. K. Chan | 1989-01-03 |