Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6548882 | Power transistor cell | Peter Baureis, Jan Müller | 2003-04-15 |
| 5436475 | Bipolar transistor for high power in the microwave range | Helmut Tews | 1995-07-25 |
| 5346862 | Method for the electrical insulation of a circuit function element on a semiconductor component | Lothar Schleicher, Elke Schoening | 1994-09-13 |
| 5340755 | Method of making planar heterobipolar transistor having trenched isolation of the collector terminal | Joachim Hoepfner, Lothar Schleicher | 1994-08-23 |
| 5274266 | Permeable base transistor having selectively grown emitter | Helmut Tews | 1993-12-28 |
| 5093272 | Manufacturing method for a self-aligned emitter-base-complex for heterobipolar transistors | Joachim Hoepfner, Helmut Tews | 1992-03-03 |
| 5070028 | Method for manufacturing bipolar transistors having extremely reduced base-collection capacitance | Helmut Tews | 1991-12-03 |
| 4904612 | Method for manufacturing a planar, self-aligned emitter-base complex | Josef Willer, Helmut Tews | 1990-02-27 |
| 4894350 | Method for manufacturing ohmic contacts having low transfer resistances | Helmut Tews, Thomas H. Hager | 1990-01-16 |