Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12205815 | Gallium arsenide substrate comprising a surface oxide layer with improved surface homogeneity | Wolfram Fliegel, Christoph Klement, Christa Willnauer, Max Scheffer-Czygan, André Kleinwechter +2 more | 2025-01-21 |
| 11965266 | Device and method of manufacturing AIII-BV-crystals and substrate wafers manufactured thereof free of residual stress and dislocations | Michael Rosch, Dmitry Suptel, Ulrich Kretzer, Berndt Weinert | 2024-04-23 |
| 11505847 | Method and apparatus for Ga-recovery | Thomas Sowden Reinhold, Berndt Weinert, Oliver Zeidler, Michael Stelter | 2022-11-22 |
| 11170989 | Gallium arsenide substrate comprising a surface oxide layer with improved surface homogeneity | Wolfram Fliegel, Christoph Klement, Christa Willnauer, Max Scheffer-Czygan, André Kleinwechter +2 more | 2021-11-09 |
| 10460924 | Process for producing a gallium arsenide substrate which includes marangoni drying | Wolfram Fliegel, Christoph Klement, Christa Willnauer, Max Scheffer-Czygan, André Kleinwechter +2 more | 2019-10-29 |
| 9856579 | Method and device for manufacturing semiconductor compound materials by means of vapour phase epitaxy | Gunnar Leibiger, Frank Habel | 2018-01-02 |
| 9368585 | Arrangement and method for manufacturing a crystal from a melt of a raw material and single crystal | Thomas Bünger, Michael Butter, Rico Rühmann, Max Scheffer-Czygan | 2016-06-14 |
| 9181633 | Device and process for heating III-V wafers, and annealed III-V semiconductor single crystal wafer | Manfred Jurisch, Thomas Bünger, Berndt Weinert, Frank Börner | 2015-11-10 |
| 9103048 | Device and process for producing poly-crystalline or multi-crystalline silicon; ingot as well as wafer of poly-crystalline or multi-crystalline silicon produced thereby, and use for the manufacture of solar cells | Berndt Weinert, Manfred Jurisch | 2015-08-11 |
| 9074297 | Method and device for manufacturing semiconductor compound materials by means of vapour phase epitaxy | Gunnar Leibiger, Frank Habel | 2015-07-07 |
| 8815392 | Process for producing doped gallium arsenide substrate wafers having low optical absorption coefficient | Ulrich Kretzer, Frank Börner, Frieder Kropfgans | 2014-08-26 |
| 8771560 | Process for the manufacture of doped semiconductor single crystals, and III-V semiconductor single crystal | Ulrich Kretzer, Thomas Bünger | 2014-07-08 |
| 8652253 | Arrangement and method for manufacturing a crystal from a melt of a raw material and single crystal | Thomas Bünger, Michael Butter, Rico Rühmann, Max Scheffer-Czygan | 2014-02-18 |
| 8329295 | Process for producing doped gallium arsenide substrate wafers having low optical absorption coefficient | Ulrich Kretzer, Frank Börner, Frieder Kropfgans | 2012-12-11 |
| 8048224 | Process for producing a III-N bulk crystal and a free-standing III-N substrate, and III-N bulk crystal and free-standing III-N substrate | Gunnar Leibiger, Frank Habel | 2011-11-01 |
| 8025729 | Device and process for heating III-V wafers, and annealed III-V semiconductor single crystal wafer | Manfred Jurisch, Thomas Bünger, Berndt Weinert, Frank Börner | 2011-09-27 |
| 7410540 | Process for the manufacture of doped semiconductor single crystals, and III-V semiconductor single crystal | Ulrich Kretzer, Thomas Bünger | 2008-08-12 |
| 6355910 | Heating element for heating crucibles and arrangement of heating elements | Albrecht Seidl, Andreas Kohler | 2002-03-12 |