Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5346862 | Method for the electrical insulation of a circuit function element on a semiconductor component | Hans-Peter Zwicknagl, Elke Schoening | 1994-09-13 |
| 5340755 | Method of making planar heterobipolar transistor having trenched isolation of the collector terminal | Hans-Peter Zwicknagl, Joachim Hoepfner | 1994-08-23 |