Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5181985 | Process for the wet-chemical surface treatment of semiconductor wafers | Christa Gratzl | 1993-01-26 |
| 5133160 | Process for the removal of specific crystal structures defects from semiconductor discs | Reinhold Wahlich | 1992-07-28 |
| 4724171 | Process for protecting polished silicon surfaces | — | 1988-02-09 |
| 4692223 | Process for polishing silicon wafers | Herbert Jacob | 1987-09-08 |
| 4448634 | Process for polishing III-V-semiconductor surfaces | — | 1984-05-15 |