Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10837120 | Method of manufacturing CZ silicon wafers, and method of manufacturing a semiconductor device | Johannes Freund, Helmut Oefner, Hans-Joachim Schulze | 2020-11-17 |
| 10724149 | Method of manufacturing CZ silicon wafers, and method of manufacturing a semiconductor device | Johannes Freund, Helmut Oefner, Hans-Joachim Schulze | 2020-07-28 |
| 10665705 | Semiconductor device with deep diffusion region | Peter Irsigler, Hans-Joachim Schulze | 2020-05-26 |
| 10607839 | Method of reducing an impurity concentration in a semiconductor body | Hans-Joachim Schulze, Peter Irsigler | 2020-03-31 |