Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853315 | O-quinone diazide sulfonic acid monoesters useful as sensitizers for positive resists | Dennis McKean, Robert D. Miller, Joseph G. Walsh | 1989-08-01 |
| 4810601 | Top imaged resists | Robert David Allen, Kaolin N. Chiong, Ming-Fea Chow, Scott A. MacDonald, Jer-Ming Yang | 1989-03-07 |
| 4800152 | Negative resist compositions | Robert David Allen, Jean M. J. Frechet, Robert J. Twieg | 1989-01-24 |