Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882200 | Method for photopatterning metallization via UV-laser ablation of the activator | Yung S. Liu | 1989-11-21 |
| 4857382 | Apparatus and method for photoetching of polyimides, polycarbonates and polyetherimides | Yung S. Liu | 1989-08-15 |